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Sea to Summit Ultra-Sil® Pack Cover

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The Ultra-Sil Pack Cover ends the debate about whether you should carry one or not. It's a tiny and compelling solution and the medium size weighs less than four ounces. Plus it packs into its own small stuff sack - why wouldn't you carry one?


Size Chart
Pack Cover SizePack SizeWeightLength x Width x Depth
XS15-30L / 900-1800cu in2.0oz20 x 11 x 8 inches
Small30-50L / 1800-3000cu in3.0oz23 x 13 x 9 inches
Medium50-70L / 3000-4300cu in3.9oz28 x 16 x 10 inches
Large70-95L / 4300-5800cu in4.6oz32 x 17 x 12 inches
Product Details
  • Made of 30D Diamond Ripstop silicone impregnated Cordura®, so its waterproof finish can't peel or wear off over time
  • Siliconized Cordura® is about one third the weight of traditional coated nylon
  • This pack cover uses a "no seam" construction for complete waterproofness
  • Has a mid-back keeper strap that helps secure it to the pack and keep the sides from catching wind (except size XS)
  • Comes packaged in its own mini siliconized nylon stuff sack that remains attached to the cover so it can't get lost
Ultra-Sil® Pack Cover

Ultra-Sil® Pack Cover