Onyx Lightweight 15L

Mountain Warehouse
£32.99 Save 39%£19.99
Option - Black
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Product Details

The Onyx 15L Backpack is ideal for carrying with you on commutes and day trips. Hydration compatible, the bag has adjustable sternum straps and reflective details for enhanced visibility in low light situations.
Dimensions: 47 (H) x 24 (W) x 15 (D) cm. Weight: 0.32 KG.


  • Hydration Compatible - A compartment specifically for a hydration pack. A hydration bladder is not included
  • Chest/Sternum Strap - Offers support for your back by helping to distribute weight and balance your pack
  • Reflective Details - Be seen, be safe. Reflective detailing to aid with visibility in the dark
  • Bottle Pocket - Elasticated mesh pocket for bottles

Fabric Composition

Main fabric: Polyester 100%, Lining: Polyester 100%, Filling: Foam 60%, Polyurethane foam 40%

Key Features

  • Reflective

Responsible Entity

Mountain Warehouse Group, Compass House, 7A Howick Place, London SW1P 1DZ, United Kingdom
Code: 030128
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Delivery & Returns

UK Deliveries

FREE UK Standard Delivery on ALL orders £50!

  • Delivery in 3-5 days
  • £4.50 on orders below £50
  • Certain postcodes are not eligible for this service and will arrive later, see exclusions.

UK Premium Standard Delivery

  • Delivery in 2-3 days
  • £5.50 on order below £50 
  • £1 on orders over £50
  • Excludes BFPO addresses
  • Certain postcodes are not eligible for this service and will arrive later, see exclusions.

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  • Chose from over 250 stores Nationwide
  • Delivery in 3 to 5 Days
  • (Highlands and Islands +1 day)
  • £2.50 on orders below £20

Next-Day Delivery -  UK Mainland Delivery 

  • Delivery within 1 working day
  • £5.95 on all orders 
  • Delivered between 8am and 8pm, Mon-Sat (Excl. Bank Holidays)
  • Certain postcodes are not eligible for this service and will arrive later, see exclusions.

UK Returns

Free, Easy UK Returns to Store

  • Free returns instore - to any of our 250+ stores nationwide

Easy Online Returns Service

  • Choose from ParcelShop drop off, Locker drop off or Courier Collection
  • Visit our returns centre to start a return here
  • Select one of the convenient options to generate a returns label
  • Attach the returns label and drop it off

This does not affect your statutory rights

For full terms and conditions please see our Delivery & Returns policy