Duffle bags
Product 2026
Femme, Homme, Enfant
Among the wide range of sizes available, we chose to test the 20-litre version. This is an ultralight compression sack, weighing just 97 g (3.4 oz) on our scales. It’s designed to compress clothing—whether clean or dirty—inside a backpack or duffel bag, helping you save valuable packing space.
Made from durable Cordura® fabric, the sack is built to withstand regular outdoor use. Four compression straps dramatically reduce its overall volume, while the two front straps feature quick-release buckles, making it easy to access the top opening without fully undoing the compression system.
With a 20-litre capacity, it’s surprising just how much clothing and gear you can fit inside. Its strengths lie not only in its impressively low weight and durability, but also in the slightly translucent fabric, which makes it easy to identify the contents without opening the sack.
We particularly appreciated its ability to keep clothing dry, providing effective protection from moisture during travel and outdoor adventures.
The Sea to Summit Ultra-Sil Compression Sack is an exceptionally lightweight way to organize your backpack or duffel while protecting your gear from moisture and reducing bulk. A simple yet highly effective accessory that quickly becomes an essential part of any trekking kit. First Test4Outside Award.
We used this equipment over a long period of time
These are our thoughts after intensive use:
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