Sea to Summit Ultra-Sil Stuff Sack

While the fabric has a 2000mm hydrostatic head rating and is water-resistant, this is not a dry bag. The drawcord closure allows moisture to enter, so it is designed to keep your gear organized and protected from light splashes rather than full submersion.

The slick, silicone-impregnated nylon is designed to slide easily into packed backpacks. It prevents the friction that usually makes stuffing gear into tight spaces frustrating, allowing you to compress and organize your pack much faster.

The 30D Ultra-Sil nylon is reinforced with CORDURA yarns, which gives it impressive tear strength for its weight. While it is thin to save space, it is robust enough to handle the rigors of backpacking and regular travel.

Yes, the reinforced grab handle is surprisingly useful. It gives you a secure point to pull the sack out of a tight pack or hold onto while you are pulling gear out, preventing you from having to yank on the fabric itself.

This sack is designed for organization rather than compression. While you can stuff soft items into it, it lacks the compression straps found on dedicated compression sacks, so it won't significantly reduce the volume of bulky items like sleeping bags.