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| Size | XS (Extra Short) | S (Short) | M (Medium) | L (Long) |
| Torso length (cm) | 36 - 41 cm | 42 - 47 cm | 48 - 52 cm | 53 - 58 cm |
| Torso length (in) | 14 - 16 in | 16.5 - 18.5 in | 19 - 20.5 in | 21 - 23 in |
EXPED Carrying System
For a lightly loaded day pack, determining the exact back length is not absolutely crucial. With trekking or mountaineering backpacks, however, it is essential, as only a perfect fit will efficiently transfer the weight to the hips. With heavy loads or backpacks featuring an internal carrying system, the centre of the hip wings should ideally rest on the iliac crest and the rear pad on the sacrum.
How do you measure back length?
To determine the back length, use a tape measure to measure the distance between the base of the shoulders or the level of the 7th cervical vertebra (which you can feel protruding where the neck meets the spine) and the upper edge of the iliac crest.
Video: How do I adjust my trekking backpack?
The Lightning, Ridgeline and Skyline rucksacks are fitted with a unisex carrying system. They offer two adjustable back lengths: S | M and L | XL.
Black / S/M
Ultralight, comfortable backpacking pack with roll-top closure
With its ultra-lightweight construction and adjustable back system, the Lightning was developed for trekking tours where low weight and high carrying comfort are crucial.
The innovative T-Rex carrying system with reduced contact points ensures effective ventilation and freedom of movement. The back length can be precisely adjusted, while the efficient load transfer to the hip belt ensures a stable and comfortable fit even with a heavier pack weight.
Sophisticated pack volume management allows flexible adjustments. The zig-zag compression straps are easy to adjust and, together with the roll-top fastener, allow variable volume control. They also secure larger equipment such as a sleeping mat or flysheet. Generous mesh outer pockets, zipped pockets on the hip belt and modular attachment points support clear organization.
Made from ultra-light ripstop nylon with a reinforced polyester base, the Lightning combines minimal weight, durable performance and well thought-out design.
EXPED calculates all climate emissions from the production and transportation of this product and finances certified climate protection projects through myclimate to an equal extent.
More and more EXPED products are made from recycled materials. Materials gained from previously made materials -such as PET-bottles or waste from the production of textiles.
Bluesign® is the world's strictest textile standard for environmental and consumer protection in the textile industry. All materials of this product which are accordingly labelled are manufactured and approved according to the bluesign® standard.
All EXPED textile products are made without intentionally added PFAS since 2025. We work closely with suppliers and perform independent tests to ensure our products contain zero PFAS.
The Korean-owned company Vision Products Corporation has been producing backpacks and bags since 1984.
4.9 · 1365 reviews on Google
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Kitty AuToday
I bought a water filter. There was a bit of a hiccup with the delivery, but the Hillmalaya team sorted it out quickly. The service is very good 👍. Also, next time I shop I will never use JD Express (京東快遞) again. It was really exasperating!
買了濾水器，送貨時有點阻滯，但Hillmalaya團隊很快搞定，服務非常好👍。另外，下次購物絕不再用京東快遞，非常勞氣！
Agnes KwanToday
Fast & efficient delivery. Products are good & align with the picture shown. Thanks
Godwin HoToday
Fast delivery, received it the day after ordering. Great 👍
Product: Thermacell MR450
物流速度快，訂貨後翌日已收到費。讚👍
貨品：Thermacell MR450
J L1 day ago
Fast Delivery, Good Product.
kai chuen cheung1 day ago
Mass product,Cheap price and good service
Marco Ng2 days ago
Great product quality and top-notch service!
Sultan Mohd3 days ago
Really nice service soo happy with the product
Steve McKee3 days ago
Great product at a great price. Delivered on time.
Brian4 days ago
Been buying all my trial running clothes and equipment from hillmalaya. Recently, they messed up my maurten gel with another model. The shop responded promptly with a great offer! I do highly recommend everyone to enjoy a great shopping experience here.
Philip Choi5 days ago
I like these foldable trail chairs very much. I bought 2 this time round in addition 4 others at home. I used it to sit down to do chores at home especially at low level, gardening (trimming lower branches) and sitting in the park for outdoor photography especially waiting for birds. This reduces the need to squat for long periods of time which is not good for my knees and legs as I grow older.
Andy Chu5 days ago
Delivery was really fast, very convenient!
物流好快，非常方便！
Darkhan Sattursyn5 days ago
Great store with very reasonable prices and excellent value for money. The staff were polite, friendly, and helpful throughout my visit. The products were of good quality, and I was happy with my overall experience. I would definitely recommend this store and plan to come back.
