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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
Great mountaineering bag! Better features than big-brand packs that cost twice as much. Simond FTW
Great evolution of the Alpinism 33, top-notch bindings and adjustments
Great backpack for hiking for up to 3 days. Once the adjustments are made, the bag no longer moves and you hardly feel it. To be seen this winter on ski touring outings.
good evolution of the 33L
Excellent bag! Plenty of pockets and storage space, all in a lightweight, compact, and modular bag. Absolutely unbeatable value for money compared to other mountaineering brands. The yellow color is very attractive; we'll see how it holds up over time.
Excellent mountain bag, very good Simond quality at an affordable price!
Very practical for ski touring for a day or a weekend. Also used for multi-pitch climbing.
excellent value for money, very practical, it has nothing to envy from competing brands
The bag is very practical to use, but there are two major drawbacks that make me not recommend it: the Velcro that closes the front pocket is wide, so the closing force is very good, but it pulls on the seam every time you open the pocket (torn after 3 months of use). Second drawback: I find the helmet holder impractical. I was used to the net on the old 30L model, and I find this net much less easy to use. The front flask holder, on the other hand, is very well thought out and useful.
Excellent backpack for mountaineering and ski mountaineering, very comfortable and functional but with volumes that are not very usable, the pocket of the hydration bag is placed in such a position that, once filled, it prevents you from inserting anything into the backpack, the probe bag could have been placed in the shovel case which is rather small (the Wedze shovel fits with difficulty) 3 could also have a hole or a pocket for the handle. it lacks some more predisposition for some attachment on the backpack to hang bivouac or climbing material and a DWR treatment or a waterproof case (I know it is a backpack for mountaineering and not for trekking but it does not hold anything at all in terms of rain)
Very good, lightweight and fantastically fitting backpack. The only thing that's a bit tedious is fiddling with the lid, but otherwise it's great.
Solid
Very solid and compact mountain backpack - what I liked the most were the cleverly thought-out systems for attaching the ice axe and the rest of the gear. A nice option for attaching a helmet to the back of the backpack or at the top.
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.
