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Sea To Summit
Ultra-Sil Dry Sack 4L
The new Sea to Summit Ultra-Sil™ Dry Sacks are more than 50% lighter than our super popular Dry Sacks.
They’re made of Siliconized Cordura®, which is one of the lightest and toughest waterproof nylon fabrics available.
Now you don’t have to choose between keeping your gear dry and keeping it light.