Mountaineering Backpack 70 Litres - Makalu 45/70 Red


Developed in collaboration with our mountain guide partners for your multi-day bivouac ascents. This bag is ideal for expeditions.

Its modular design gives you a maximum volume of 70L for your approach or carrying stages. For your technical climbing stages, switch to the lighter and minimalist 45L version.

Color: Vermilion

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Product benefits


Ice axe loops and ski/snowboard carrying system.

Carrying comfort

Thermoformed foam back Ergonomic straps Load adjuster straps and hip belt.


Total weight = 1200g, minimalist version 850g (without top lid and foam back)


Adjustable volume between 45L and 70L. Removable top lid and foam back.


420D polyamide main fabric, 600D TPE-coated polyester bag bottom.

Technical information


Minimum: 45 litres.
Maximum: 70 litres.


Minimum 45L: H55 x W33 x D30 cm.
Maximum 70L: H83 x W33 x D30 cm.


- Thermoformed foam back, ensuring good carrying comfort and good breathability.
- Inner foam to increase the rigidity of the back, removable to make it more lightweight. It can also be used as a bivouac mat.


- Padded and mesh-lined ergonomic adjustable shoulder straps, with adjustable load adjuster straps.
- Adjustable and removable chest strap.
- Ergonomic hip belt for better carrying comfort.
- Two gear loops on shoulder straps.


- Two ice-axe loops.
- Adjustable and removable front ski loop system.
- Adjustable over-the-top strap to compress the bag or secure a rope.
- Side compression straps, can be used to carry skis, sleeping mat, etc. They can also be clipped together at the front of the pack to carry a snowboard or snowshoes.
- Hydration pack compatible: two hooks, drinking tube hole on shoulder strap.
- Grab handle.
- Gear loop on hip belt.


- A quick-access pocket at the top of the top lid, 25 cm x 25 cm.
- An inner mesh pocket on the inside of the top lid with key hook, 21 cm x 25 cm.
- A quick-access pocket on the front of the bag, 29 cm x 21 cm.
- A zip pocket on the hip belt, 18 cm x 10 cm.
- An inner zip pocket at the back, 22 cm x 20 cm, with key hook.

Opening system

- The top of the bag fastens with a drawcord.
- Roll-top closure on the middle section, giving a reduced volume of 45 litres
- Large zipped side opening for quick access to the main compartment.


- Main fabric: Ripstop 420 denier polyamide / Water repellent.
- Bag base fabric: 600 denier TPE-coated polyester / Extremely durable.


5 years

Product concept & technology

Product Composition

Main fabric 100% Polyamide Lining 80% Polyester, 20% Polyamide Coating 100% Polyurethane Webbing 90% Polypropylene, 10% Thermoplastic Polyurethane


Designed by our teams in the Chamonix valley, at the foot of Mont Blanc, all of our backpacks are lab tested to guarantee their strength.

Our technical partners test them in the field to validate product claims.

Approved By

Team Simond mountaineers and climbers.
This bag has been tested on several expeditions (Himalayas, Andes, Alaska).

Maintenance advice

Hand wash

Do not bleach

Do not tumble dry

Do not iron

Do not dry-clean


Customer reviews