2025 Flysurfer BOOST⁴ Kitesurfing kite
2025 Flysurfer BOOST⁴ Kitesurfing kite
2025 Flysurfer BOOST⁴ Kitesurfing kite
2025 Flysurfer BOOST⁴ Kitesurfing kite
2025 Flysurfer BOOST⁴ Kitesurfing kite
2025 Flysurfer BOOST⁴ Kitesurfing kite
2025 Flysurfer BOOST⁴ Kitesurfing kite

Flysurfer BOOST⁴

Freeride, Progression

The BOOST is the first choice for simply having fun! Improve your riding, increase your jump height and count on the precise feedback at the bar. Uncomplicated, super simple and robust. Put the powerful freeride kite on the hook, it will always strengthen your confidence and you can grow beyond yourself!
TECHNOLOGY 5 strut L.E.I Kite
SKILLS Beginner - Advanced
SIZES 5 / 7 / 9 / 11 / 13 / 15 / 18

 

 


Features

DLX+ Material

HIGH LOAD FORCE FRAME

Der stabile Rahmen aus dicht gewebter hochfester Markenfaser von DuPont, ist mit Harz fixiert und getempert. Minimale Dehnung, hohe Reißfestigkeit, geringe Feuchtigkeitsaufnahme und sehr gute UV-Beständigkeit reduzieren die Deformation des Kites bei höchster Beanspruchung.
Verstärkte Konstruktion

PULLEY ASSISTED BRIDLE SYSTEM

Das von Umlenkrollen unterstütze Waage-System ermöglicht ein ausgewogenes Bargefühl. Der Kite leitet die Kraft homogen ein und erhält ein ruhiges Flugbild.
Rigid Foil Technologie

SPLICED BRIDLES

Das gespleißte Waage-System steht für Verarbeitung auf höchstem Niveau und bietet maximale Sicherheit, beste Gleitfähigkeit und minimiert das Verhaken.
Double Cordwise Ballooning

BRIDLE ANCHOR POINTS

Die beweglichen Aufhängepunkte vermeiden Spannungsspitzen und verteilen die Kraft optimal auf die Leading Edge. Das Waage-Systems lässt sich leicht abnehmen und austauschen.
Triple Depower

REINFORCED TRAILING EDGE

Der wellig geformte Dacron-Verstärkungsstreifen an der Trailing Edge, geht weich in eine Segeltuchdoppelung über. Die Konstruktion erhöht die Langlebigkeit des Produkts bedeutend.
Automatisches Lentzsystem

GKA RESCUE LABEL

Als Partner der Global Kiteboarding Association verfügen unsere Produkte über ein Feld zum Ausfüllen der Personalien in der Mitte der Leading Edge. Dieses Feld unterstützt die Küstenwache, Rettungskräfte und die Suche bei Verlust oder Diebstahls des Sportgeräts.

BOOST YOURSELF

Frei nach dem Motto „unleash the boost“, setzt der BOOST jede deiner Bewegungen in Schub um! Entfessle dein Potential und steigere spielerisch dein Level. Erlebe besondere Sessions mit deiner Crew, toppe deinen persönlichen Sprungrekord oder cruise entspannt in den Sonnenuntergang. Auf diesen Freeride-Kite kannst du immer vertrauen. Ganz speziell Rider, welche ein kraftvolles Barfeedback, ein ruhiges Flugbild und satten Grundzug mögen, werden beim BOOST sofort fündig. Der Kite lässt sich noch einfacher kontrollieren und das neue Waage-System mit Pulleys unterstützt zusätzlich den bereits sehr simplen Relaunch. Die Gewichtsreduktion erhöht die Leichtwind-Stabilität, sowie die Kontrolle am Windfensterrand. Das Drehen wurde bewusst verändert, um Tellern zu reduzieren und die Steuerung zu präzisieren. Der BOOST4 schließt trotz der weitreichenden Überarbeitung bei seinen Vorgängern an und überzeugt durch eine sehr leicht abrufbare Leistung.

      
BOOST4 Weight (kg) Aspect Ratio Color
5 2.38 5.4 petrol / amber / ocean
7 2.8 5.4 petrol / amber / ocean
9 3.24 5.4 petrol / amber / ocean
11 3.7 5.4 petrol / amber / ocean
13 4.12 5.4 petrol / ocean/ amber
15 4.44 5.9 petrol / ocean/ amber
18 5 5.9 petrol / ocean/ amber

At Surface 2 Air Sports we want you to enjoy your purchases as soon as possible, which means we strive to dispatch your order within one working day of it being placed (subject to payment authorization and stock availability). If there is going to be a delay for any reason, we’ll let you know as soon as we can.

FREE UK MAINLAND SHIPPING ON ALL ORDERS OVER £30

  • If you order before 2 pm, Monday to Friday (Excluding Bank Holidays) and we have your items in stock, we'll despatch the same day for FREE NEXT DAY SHIPPING (Where Possible)
  • If you order after 2 pm, we'll still try to despatch that day but, if we can't, we'll despatch the following working day.
  • Items ordered after 2 pm Friday or over a weekend will be despatched Monday.
  • Items despatched on Friday are for delivery the following week.
  • Items ordered over a Bank Holiday will be despatched the next working day.
  • Free Next Day (Where Possible)UK mainland shipping on all orders over £30. Orders below £30 will be £3.95
  • *Some items will incur a charge of £19.95 due to the product sizing i.e. Sit-on-Top Kayaks and Surfboards
  • *Some UK postcodes will incur a £15 shipping charge due to their location (ie. Scottish Highlands, Isle of Wight, etc.)

OUTSIDE OF THE UK MAINLAND

  • Shipping to most EU countries is calculated at £20 and can take around 5-7 working days
  • Shipping outside the EU is calculated at £35 and can take around 5-12 working days
  • S2AS reserve the right to amend shipping costs based upon the volumetric weight of the parcel and destination country
  • Please be aware that you may be liable for import taxes when you receive the item in your destination, this may be different for different countries (as a guide the UK VAT rate is 20%) you must understand and budget for any import taxes that you may have to pay. Surface 2 Air Sports is not responsible for these charges and if they are due you should be contacted by your customs office.
  • Unfortunately, if S2AS send an item out and it is then rejected by the customer due to these import charges you will receive the full refund for the item when it is returned to S2AS minus the total shipping and returns costs.
  • Exchange rates vary constantly, therefore, we cannot guarantee the price of an item in any other currency except GBP, all other currencies are approximate. The money taken from your account will be in GPB, you must check with your bank as to how it will come out of your account.
  • * For any orders leaving the UK, no UK VAT will be charged and as a result, the price you see on the website should exclude VAT.

www.s2as.com stock levels are constantly updated to maintain live stock levels but demand can sometimes be high and we occasionally run out of popular items.

Due to the constant rotation of our stock, some items may currently be on backorder and as such delivery can be delayed by up to 7 days. If this is the case, please feel free to call us for further information.

Our standard couriers are DHL, Royal Mail, DX Freight & APC.

All orders are shipped within 24hrs delivery is Monday – Friday (depending on stock). If no one is home a courier will leave details of the next delivery attempt and the contact number of the local depot. If you would like your order to be “left safe” on your property should no one be home, please specify details in the comments as you check out. (S2AS take no responsibility for order requests to be left in a "Safe place"

The delivery charge for orders outside of mainland UK is calculated on the volumetric weight of the items and the destination country.

www.s2as.com reserve the right to amend orders placed with incorrect delivery options without notice.

For delivery enquiries please contact:

E-mail info@s2as.com or call us on 01202 738 448

Upon delivery please check all items have not been damaged in transit before you sign for them. If any damage is visible, please ensure you sign as "Damaged" and you are with your rights to refuse and ask that they are returned to the sender. If you cannot thoroughly check the goods please sign for as ‘unchecked’.You must inspect and confirm that the goods are in good condition before signing. If the goods are damaged and not signed for as such, Surface 2 Air Sports cannot accept any liability and the item will not be replaced or reimbursed.

RETURNS

If for any reason you are unhappy with your purchase, you have 14 days from the purchase date to make us aware you wish to return the order and we will send you a returns form via your email address, And a further 14 days to return the item(s) to S2AS in their original condition with the packaging and tags intact for a full refund.

Please bear in mind items that are "not wanted" or ordered in customer error (i.e. wrong size/colour) will be not be refunded postage costs.

When returning items please place a note inside the parcel(s), with your Name, Contact Number, Order Number, the reason for the return (i.e. wrong size, not matching item description, etc.) and whether you wish for a refund or to exchange for a different item(s), S2AS cannot be held responsible for any delays in regards to returns without this information enclosed.

 

Please note that if goods are not returned in the condition in which you received them, we reserve the right to refuse such returns.

Any item returned to us is at your own risk and cost. Please note that we will not be liable for any loss or damage to any returned items in transit and products remain your responsibility and property until we receive them. If returned items are lost or damaged in transit, we will have to charge you (or not to refund any amounts attributable to) such loss or damage. Please send any item(s) you intend to return in the original packaging.

Product Code FKBO405KO

2025 Flysurfer BOOST⁴ Kitesurfing kite

Regular price$1,348.00
/
Shipping calculated at checkout.
Size

Flysurfer BOOST⁴

Freeride, Progression

The BOOST is the first choice for simply having fun! Improve your riding, increase your jump height and count on the precise feedback at the bar. Uncomplicated, super simple and robust. Put the powerful freeride kite on the hook, it will always strengthen your confidence and you can grow beyond yourself!
TECHNOLOGY 5 strut L.E.I Kite
SKILLS Beginner - Advanced
SIZES 5 / 7 / 9 / 11 / 13 / 15 / 18

 

 


Features

DLX+ Material

HIGH LOAD FORCE FRAME

Der stabile Rahmen aus dicht gewebter hochfester Markenfaser von DuPont, ist mit Harz fixiert und getempert. Minimale Dehnung, hohe Reißfestigkeit, geringe Feuchtigkeitsaufnahme und sehr gute UV-Beständigkeit reduzieren die Deformation des Kites bei höchster Beanspruchung.
Verstärkte Konstruktion

PULLEY ASSISTED BRIDLE SYSTEM

Das von Umlenkrollen unterstütze Waage-System ermöglicht ein ausgewogenes Bargefühl. Der Kite leitet die Kraft homogen ein und erhält ein ruhiges Flugbild.
Rigid Foil Technologie

SPLICED BRIDLES

Das gespleißte Waage-System steht für Verarbeitung auf höchstem Niveau und bietet maximale Sicherheit, beste Gleitfähigkeit und minimiert das Verhaken.
Double Cordwise Ballooning

BRIDLE ANCHOR POINTS

Die beweglichen Aufhängepunkte vermeiden Spannungsspitzen und verteilen die Kraft optimal auf die Leading Edge. Das Waage-Systems lässt sich leicht abnehmen und austauschen.
Triple Depower

REINFORCED TRAILING EDGE

Der wellig geformte Dacron-Verstärkungsstreifen an der Trailing Edge, geht weich in eine Segeltuchdoppelung über. Die Konstruktion erhöht die Langlebigkeit des Produkts bedeutend.
Automatisches Lentzsystem

GKA RESCUE LABEL

Als Partner der Global Kiteboarding Association verfügen unsere Produkte über ein Feld zum Ausfüllen der Personalien in der Mitte der Leading Edge. Dieses Feld unterstützt die Küstenwache, Rettungskräfte und die Suche bei Verlust oder Diebstahls des Sportgeräts.

BOOST YOURSELF

Frei nach dem Motto „unleash the boost“, setzt der BOOST jede deiner Bewegungen in Schub um! Entfessle dein Potential und steigere spielerisch dein Level. Erlebe besondere Sessions mit deiner Crew, toppe deinen persönlichen Sprungrekord oder cruise entspannt in den Sonnenuntergang. Auf diesen Freeride-Kite kannst du immer vertrauen. Ganz speziell Rider, welche ein kraftvolles Barfeedback, ein ruhiges Flugbild und satten Grundzug mögen, werden beim BOOST sofort fündig. Der Kite lässt sich noch einfacher kontrollieren und das neue Waage-System mit Pulleys unterstützt zusätzlich den bereits sehr simplen Relaunch. Die Gewichtsreduktion erhöht die Leichtwind-Stabilität, sowie die Kontrolle am Windfensterrand. Das Drehen wurde bewusst verändert, um Tellern zu reduzieren und die Steuerung zu präzisieren. Der BOOST4 schließt trotz der weitreichenden Überarbeitung bei seinen Vorgängern an und überzeugt durch eine sehr leicht abrufbare Leistung.

      
BOOST4 Weight (kg) Aspect Ratio Color
5 2.38 5.4 petrol / amber / ocean
7 2.8 5.4 petrol / amber / ocean
9 3.24 5.4 petrol / amber / ocean
11 3.7 5.4 petrol / amber / ocean
13 4.12 5.4 petrol / ocean/ amber
15 4.44 5.9 petrol / ocean/ amber
18 5 5.9 petrol / ocean/ amber

At Surface 2 Air Sports we want you to enjoy your purchases as soon as possible, which means we strive to dispatch your order within one working day of it being placed (subject to payment authorization and stock availability). If there is going to be a delay for any reason, we’ll let you know as soon as we can.

FREE UK MAINLAND SHIPPING ON ALL ORDERS OVER £30

  • If you order before 2 pm, Monday to Friday (Excluding Bank Holidays) and we have your items in stock, we'll despatch the same day for FREE NEXT DAY SHIPPING (Where Possible)
  • If you order after 2 pm, we'll still try to despatch that day but, if we can't, we'll despatch the following working day.
  • Items ordered after 2 pm Friday or over a weekend will be despatched Monday.
  • Items despatched on Friday are for delivery the following week.
  • Items ordered over a Bank Holiday will be despatched the next working day.
  • Free Next Day (Where Possible)UK mainland shipping on all orders over £30. Orders below £30 will be £3.95
  • *Some items will incur a charge of £19.95 due to the product sizing i.e. Sit-on-Top Kayaks and Surfboards
  • *Some UK postcodes will incur a £15 shipping charge due to their location (ie. Scottish Highlands, Isle of Wight, etc.)

OUTSIDE OF THE UK MAINLAND

  • Shipping to most EU countries is calculated at £20 and can take around 5-7 working days
  • Shipping outside the EU is calculated at £35 and can take around 5-12 working days
  • S2AS reserve the right to amend shipping costs based upon the volumetric weight of the parcel and destination country
  • Please be aware that you may be liable for import taxes when you receive the item in your destination, this may be different for different countries (as a guide the UK VAT rate is 20%) you must understand and budget for any import taxes that you may have to pay. Surface 2 Air Sports is not responsible for these charges and if they are due you should be contacted by your customs office.
  • Unfortunately, if S2AS send an item out and it is then rejected by the customer due to these import charges you will receive the full refund for the item when it is returned to S2AS minus the total shipping and returns costs.
  • Exchange rates vary constantly, therefore, we cannot guarantee the price of an item in any other currency except GBP, all other currencies are approximate. The money taken from your account will be in GPB, you must check with your bank as to how it will come out of your account.
  • * For any orders leaving the UK, no UK VAT will be charged and as a result, the price you see on the website should exclude VAT.

www.s2as.com stock levels are constantly updated to maintain live stock levels but demand can sometimes be high and we occasionally run out of popular items.

Due to the constant rotation of our stock, some items may currently be on backorder and as such delivery can be delayed by up to 7 days. If this is the case, please feel free to call us for further information.

Our standard couriers are DHL, Royal Mail, DX Freight & APC.

All orders are shipped within 24hrs delivery is Monday – Friday (depending on stock). If no one is home a courier will leave details of the next delivery attempt and the contact number of the local depot. If you would like your order to be “left safe” on your property should no one be home, please specify details in the comments as you check out. (S2AS take no responsibility for order requests to be left in a "Safe place"

The delivery charge for orders outside of mainland UK is calculated on the volumetric weight of the items and the destination country.

www.s2as.com reserve the right to amend orders placed with incorrect delivery options without notice.

For delivery enquiries please contact:

E-mail info@s2as.com or call us on 01202 738 448

Upon delivery please check all items have not been damaged in transit before you sign for them. If any damage is visible, please ensure you sign as "Damaged" and you are with your rights to refuse and ask that they are returned to the sender. If you cannot thoroughly check the goods please sign for as ‘unchecked’.You must inspect and confirm that the goods are in good condition before signing. If the goods are damaged and not signed for as such, Surface 2 Air Sports cannot accept any liability and the item will not be replaced or reimbursed.

RETURNS

If for any reason you are unhappy with your purchase, you have 14 days from the purchase date to make us aware you wish to return the order and we will send you a returns form via your email address, And a further 14 days to return the item(s) to S2AS in their original condition with the packaging and tags intact for a full refund.

Please bear in mind items that are "not wanted" or ordered in customer error (i.e. wrong size/colour) will be not be refunded postage costs.

When returning items please place a note inside the parcel(s), with your Name, Contact Number, Order Number, the reason for the return (i.e. wrong size, not matching item description, etc.) and whether you wish for a refund or to exchange for a different item(s), S2AS cannot be held responsible for any delays in regards to returns without this information enclosed.

 

Please note that if goods are not returned in the condition in which you received them, we reserve the right to refuse such returns.

Any item returned to us is at your own risk and cost. Please note that we will not be liable for any loss or damage to any returned items in transit and products remain your responsibility and property until we receive them. If returned items are lost or damaged in transit, we will have to charge you (or not to refund any amounts attributable to) such loss or damage. Please send any item(s) you intend to return in the original packaging.

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