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Ultra-Sil Compression Sack

Selected color
Only 7 items available Only 7 items availableOnly 7 items available
Ultra-Sil Compression Sack is available for purchase in increments of 1

When you need to compress volume without significantly adding weight, the Ultra-Sil Compression Sack is an excellent solution. Made from a 30D diamond rip-stop siliconized CORDURA fabric they can be compressed to one third of the original volume. Ideal for use inside your pack or travel bag when you need to compress clothing or bulky soft items to allow space for other essentials or fun holiday items.

Packability - In a perfect world, with perfect contents, this compresses down to 1/3rd its original volume (i.e. from 15 to 5 liters)

Best Use - Internal pack organization, packing up whatever you feel like belongs in a bag that can be compressed

  • 30D Diamond Ripstop Siliconized CORDURA
  • 4 straps for even compression
  • Extra long straps so these sacks can really be filled to capacity
  • Bar tack reinforced stress points
  • Pull handle on the bottom
  • Slippery finish for easy packing
  • Note: seams are not tape-sealed; therefore this product is not waterproof - only water resistant

What this bag could hold

  • 6 liter: a layer, beanie, and gloves
  • 10 liter: a puffy jacket & a compact sleeping bag
  • 15 liter: all your clothes for a trip
  • 20 liter: a tent or any Sea to Summit sleeping bag
  • 30 liter: Sea to Summit sleeping bag and your extra layers

*If you select the color as ASSORTED you will receive a color at random in the size you selected*


Compressed Volume 6L to 2L 10L to 3.3L 14L to 4.5L 20L to 6.5L 30L to 10L
Dimensions 6 x 14 in 7 x 16 in 8 x 18 in 9 x 20 in 10.5 x 23 in
Gear Capacity (L) 6 L 10 L 14 L 20 L 30 L
Weight 2.0 oz / 58g 2.3 oz / 66g 2.7 oz / 78g 3.3 oz / 94g 3.8 oz / 108g