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Simond Alpinism Evo 33L Mountaineering Backpack
The ultimate in versatility—built for mountaineering, ski touring, and more. This lightweight, durable pack features modular elements that adapt to your adventure.
Free shipping over $49
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

Versatility
The hat, waistband, helmet holder and back plate can be removed
Lightweight
Weight: 1,160 g (with accessories) or 850 g (without accessories)
Versatility
Several gear loops: skis, poles, ice axes, ropes, helmet, flask, etc.
Durability
Main component in double rip-stop polyamide
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Product Customer Reviews
It's a perfect bag. I thought about it a bit because of the price, but after buying the bag and using it for a few days, it made me forget about that disadvantage. First of all, it's very light, durable, the main fabric, accessories and workmanship are perfect, and its ergonomics are good. On the other hand, since it's designed as a summit bag, it's normal that there are no pockets outside to carry a water thermos, it's natural to carry everything inside. The weak back support is also due to the reason for its design. For these reasons, it can be a problem in trekking and daily city use. The fact that the waist support is removable is also an advantage, increasing its versatility. For example, you can also use it as a luggage bag on a bike. It would be better if the small drawstring pouch on the right strap was removable. Some users may not prefer this. Thank you Decathlon.
It's pretty simple for me, practicing many mountain sports, guide in the far north and almost professional gear geek (engineer in an outdoor equipment company in addition to the free time I spend there). Today it's the bag that I already recommend (I've only had it for 2 weeks) with my eyes closed. Finally a Simond bag that really doesn't envy the others. However, some constructive comments: -The fabric of the front flap is lined, it would have been great to put a zip there to use it as a small pocket when the flap is removed - The flap loops are a little low and the flap straps end up falling on the sides when the bag is lightly loaded, why not put them higher, perhaps the reason escapes me? -The pocket at hip level is much better than the previous ones but a more stretchy and larger material would have been really great. -A removable flask holder net would have been great -A zippable pocket for the second shoulder to carry your phone would also have been great - Carrying straps a little longer to carry the zfold mattresses without having to force would be great Tip for skiers looking for a compact bag for both the descent and the ascent without sacrificing the functionality of a flap, store the flap in the bag and close the strap over it :)
Very high quality, flexible and affordable mountaineering backpack. I recommend it!
Used for ski mountaineering. Roomy and perfect for both easy and difficult trips, roomy when you need to carry more technical material. Simone's quality/price ratio is reaching very high levels!!!!
Very well thought out design, roomy and light. I definitely recommend it!
Much improved compared to the previous version also in the back, now more tapered. Convenient the possibility of lightening it by removing the upper pocket. Very useful the front pocket for skins. The best backpack ever tried for winter activities.
Perfect bag. The description doesn't tell the whole story. The included helmet clip fits into a dedicated pocket. The large exterior pocket is perfect for gloves, climbing skins, or a small raincoat. The side opening allows access to the entire bag.
A perfectly sized backpack for day hikes and very versatile (you can comfortably carry all the gear you need). It's also worth noting that it has a convenient front pocket for a water bottle.
Simond did a great job. Good upgrade. Front pocket with Velcro for avalanche transceiver, a shovel and probe fit nicely in it and it doesn't get in the way anywhere. Easily removable canopy, smaller pocket inside for documents and keys, even if you don't have a canopy. Quite a large and flexible pocket on the hip belt, where you can put a larger mobile phone. And a big plus, a bottle pocket on the shoulder strap. The second one could have another pocket for small items for next time. The side straps can be easily snapped forward, for example for a splitboard. The red version is perhaps too striking. The back is simple, but it holds its shape even when the backpack is full. The backpack material is just right, for the money, a top mountain backpack. Thanks. Oh, and there is a super hidden pocket for a helmet net, which is included. So the backpack is complete as it should be.
a brilliantly designed and made backpack, great ergonomic solutions
Additional Product Information
Composition
Main fabric: 100.0% Polyamide ; Lining: 100.0% Polyamide ; Webbing: 90.0% Polypropylene, 10.0% Thermoplastic Polyurethane ; Comfort foam: 70.0% Ethylene Vinyl Acetate, 30.0% Polyethylene ; Coating: 100.0% Polyurethane
What are the dimensions of the alpinism 33 backpack?
- Length: 65 cm - Width: 35 cm - Height: 20 cm
What is the volume of the alpinism 33 backpack?
This backpack has a storage capacity of 33 litres.
What accessories are included in the alpinism 33 bag?
- 2 ice axe holders- Outside front pocket for shovel bucket, jacket, skins- Ski, snowboard and snowshoe carrying straps- Hydration pocket: 2 hooks, pipette passage- Equipment holder on belt- Helmet net (removable and stored in a small pocket, there are 2 possible positions on the bag)- 500 ml flask holder on shoulder strap- Interior sleeves for shovel tube and probe
How was the alpinism 33 backpack designed?
- Thermoformed foam back, ensuring good carrying comfort and good breathability.- Rigid inner foam to increase the hold of the back that is removable to make it lighter. It can also be used as a bivouac mat.
How can carrying be made easier?
- Padded and mesh-lined ergonomic adjustable shoulder straps with adjustable load adjuster straps.- Adjustable chest strap.- Padded and mesh-lined ergonomic hip belt for better carrying comfort.- Two gear loops on the shoulder straps.
How many pockets does the alpinism 33 backpack have?
This backpack has 4 pockets:- A quick-access pocket at the top of the lid with a two-way zip.- An inner mesh pocket on the inside of the top lid with a key hook.- A stretch zipped pocket on the waistband (for storing cereal bars, etc.)- An inside zipped pocket at the bottom of the backpack for papers and car keys
How is the backpack opened?
- Large two-way zipped side opening for quick and easy access to the main compartment.
Mountaineering backpack simond: 10-year guarantee
At Decathlon, our Simond mountaineering backpacks come with a 10-year guarantee, excluding normal wear and tear. In the event of a fault, we will offer you a repair, replacement or refund. The guarantee covers components from the zip to the stitching. For more information, visit our website.
Product testing
Designed by our teams in the Chamonix Valley at the foot of Mont Blanc, every Simond backpack is lab-tested for strength and durability. Field-tested by our technical partners to ensure real-world performance.
Origin
Imported

Simond Alpinism Evo 33L Mountaineering Backpack
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
