Sierra Designs Flex Trail 40β60L Pack β Expandable Hiking Backpack
All orders ship excluding tax from the UK
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Sierra Designs Flex Trail 40β60L Pack β Expandable Hiking Backpack
Sierra Designs Flex Trail 40β60L Pack β Expandable Hiking Backpack
Explore like a pro no matter your experience level. The Flex Trail ultralight backpack gives you the ability to tailor the pack size to your adventure needs by taking advantage of the horizontal gussets. Cinch it down to a 40L cargo pack capacity for your shorter trips. Expand it out to 60L for your longer backpacking adventures. Continue to customize your backpack with the hardware-based adjustable torso. Keep your essentials close at hand with oversized mesh pockets and zippered hip pockets. The aluminum perimeter frame suspension keeps this backpacking pack lightweight while the support stays strong.
Features
-
Expandable volume to adjust to both short and longer backpacking adventures - Lightweight aluminum perimeter frame for increased stability
- Customizable fit with a hardware based adjustable torso
Large front stretch mesh Shove-It pocket to easily store jackets and other day essentials
- Zippered hip belt pockets and 2 stretch mesh side pockets for storing water bottles and items you need to keep on hand
- U-shaped access to top zipper and zip stash pocket in lid to store items for easy access
- Ultralight backpacking backpack
Materials
- 150D Polyester Ripstop / 420D Polyester
Tech Specs
- Capacity: 39-56L / 2380-3417 in3
- Weight: 2 lbs 12 oz Β / 1.23 kg
- Optimal Carry Weight: 15-45 lbs / 7-20 kg
- Torso Fit: 15.5" - 21" / 39 - 53 cm
- Waist Belt Size: 31" - 54" / 31 - 54 cm
- Dimensions (H x W x D): 27.5" x 10.5" x 14" / 70 x 27 x 35 cm
- No. of Hip Belt Pockets: 2
- No. of Exterior Pockets: 5
- SKU: 80710623WD
Delivery
We aim to dispatch all in-stock orders within 1 working day (MondayβFriday, excluding Bank Holidays).
Free UK Mainland Delivery on orders over Β£30
- Orders placed before 2pm are dispatched same day where possible
- Orders placed after 2pm are dispatched the next working day
- Orders placed after 2pm Friday or over the weekend ship on Monday
- Orders under Β£30 are charged Β£3.95
Oversized & Remote Areas
- Large items (e.g. surfboards, sit-on-top kayaks): Β£19.95
- Some UK postcodes (Highlands & Islands) incur a Β£15 surcharge
International Delivery
- EU delivery from Β£20 (3β7 working days)
- Rest of world from Β£35 (3β7 working days)
Local VAT, customs duties, or import charges may apply to international orders and are the responsibility of the customer.
Returns FAQs
Can I return an item if I change my mind?
Yes. You can return your order within 14 days of delivery. Items must be unused, in original condition, with all packaging and tags intact.
How do I start a return?
Email info@s2as.com with your order number and reason for return. Weβll reply with return instructions.
How long do I have to return an item?
Let us know if you would like to return your item within 14 days. Once youβve notified us (within 14 days), you have a further 14 days to return the item, so 28 days in total.
Do I need to pay for return postage?
Yes. Return postage costs are the responsibility of the customer unless the item is faulty or incorrect.
Will I get a refund for the original delivery cost?
Original delivery costs are non-refundable for unwanted items. Faulty or incorrect items will receive a full refund including original delivery costs.
What if my item is faulty or damaged?
Please contact us as soon as possible with photos. If confirmed faulty, weβll arrange a replacement or full refund.
When will I receive my refund?
Refunds are processed within 5 working days of us receiving and inspecting the return. Banks may take additional time to show the funds.
What if my return is lost in transit?
Returned items remain the customerβs responsibility until received by us. We recommend using a tracked service.
Can I exchange an item?
Yes. Let us know when you contact us and weβll do our best to arrange an exchange.
Contact
Email: info@s2as.com
Phone: 01202 738 448
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Price Match
At Surface 2 Air Sports (S2AS), we believe you shouldnβt have to choose between the best price and the best service. If you find the same product cheaper elsewhere from an authorised UK retailer β weβll match it.
How Our Price Match Works
- Find the identical product at a lower price (UK authorised retailer).
- Send us the details using the form below before checkout.
- Weβll verify it and confirm quickly.
Price Match Conditions
- Product must be identical (brand, model, size, colour, year).
- Competitor must be a UK-based authorised retailer.
- Item must be in stock and available for immediate purchase.
- Competitor price must include VAT and delivery.
- Request must be made before completing your order.
What We Donβt Match
- Marketplace sellers (Amazon, eBay, Facebook Marketplace).
- Private sellers or clearance errors.
- Members-only, bundle, or finance-only promotions.
- Used, refurbished, or ex-display items.
Found a Better Price?
Send us the details and weβll take care of the rest.
Price Match Request Form
Price Match FAQs
How long does a price match take?
Most requests are reviewed within one business day, often faster during opening hours.
Do you price match after purchase?
No β all price match requests must be submitted before checkout.
Does the competitor have to be UK-based?
Yes, the retailer must be UK-based and an authorised brand stockist.
Does shipping count in the price?
Yes β we compare the total price including VAT and delivery.
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Price Match Contact Form
Found an item cheaper elsewhere? we want to know send it to us, So we can look at matching the price for you with the Service you expect from S2AS.
