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.
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
innovative, customisable T-Rex carrying system
efficient packing volume management
ultra-light ripstop nylon with reinforced base
Product Description
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.
Volume
40 l
Min. Weight
S/M: 1115 oz L/XL: 41.1 oz
Max. Weight
S/M: 1145 oz L/XL: 42 oz
Load limit
48.5 lb
Dimensions
25.5 x 12.2 x 9 in
Shell Fabric 1
210 D HMPE ripstop nylon PU coated 1000 mm water column bluesign® approved fabric
Shell Fabric 2
recycled 600 D 82T Polyester PU coated 1500 mm water column bluesign® approved fabric
Frame
6061-T6 aluminum stay
Product with Climate Contribution
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 approved fabric
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.
Consegna velocissima (prima di pranzo il secondo giorno dopo l'ordine) e i prodotti sembrano in ottime condizioni.
Tradotto · Vedi originale
Very fast delivery (before lunchtime on the second day after order) and products look in excellent condition.
Kitty Au1 giorno fa
★★★★★
Ho comprato un filtro per l'acqua. C'è stato un piccolo intoppo con la consegna, ma il team di Hillmalaya l'ha risolto in fretta. Il servizio è ottimo 👍. Inoltre, la prossima volta che farò acquisti non userò mai più JD Express (京東快遞), è stato davvero esasperante!
Consegna rapida ed efficiente. I prodotti sono buoni e corrispondono all'immagine mostrata. Grazie
Tradotto · Vedi originale
Fast & efficient delivery. Products are good & align with the picture shown. Thanks
Godwin Ho1 giorno fa
★★★★★
Spedizione veloce, ricevuto il giorno dopo l'ordine. Ottimo 👍
Prodotto: Thermacell MR450
Tradotto · Vedi originale
物流速度快,訂貨後翌日已收到費。讚👍
貨品:Thermacell MR450
J L2 giorni fa
★★★★★
Consegna veloce, buon prodotto.
Tradotto · Vedi originale
Fast Delivery, Good Product.
kai chuen cheung2 giorni fa
★★★★★
Prodotto di massa, prezzo basso e buon servizio
Tradotto · Vedi originale
Mass product,Cheap price and good service
Marco Ng3 giorni fa
★★★★★
Ottima qualità del prodotto e servizio di prim'ordine!
Tradotto · Vedi originale
Great product quality and top-notch service!
Sultan Mohd4 giorni fa
★★★★★
Servizio davvero ottimo, sono così contento del prodotto
Tradotto · Vedi originale
Really nice service soo happy with the product
Steve McKee4 giorni fa
★★★★★
Ottimo prodotto a un ottimo prezzo. Consegnato in orario.
Tradotto · Vedi originale
Great product at a great price. Delivered on time.
Brian5 giorni fa
★★★★★
Ho sempre comprato tutto il mio abbigliamento e l'attrezzatura da trail running da Hillmalaya. Di recente hanno confuso il mio gel Maurten con un altro modello. Il negozio ha risposto subito con un'ottima offerta! Consiglio vivamente a tutti di godersi un'ottima esperienza di acquisto qui.
Tradotto · Vedi originale
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 Choi6 giorni fa
★★★★★
Mi piacciono moltissimo queste sedie pieghevoli da trail. Questa volta ne ho comprate 2, in aggiunta alle altre 4 che ho a casa. Le uso per sedermi mentre faccio i lavori di casa, soprattutto quelli vicino al suolo, per il giardinaggio (potare i rami bassi) e per sedermi al parco durante la fotografia all'aperto, soprattutto quando aspetto gli uccelli. Questo riduce la necessità di stare accovacciato a lungo, cosa che non fa bene alle mie ginocchia e alle mie gambe con l'avanzare dell'età.
Tradotto · Vedi originale
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.