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Sea to Summit Ultra-Sil Compression Sack

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Space-saving, ultra-lightweight gear storage for organized packing.

When you need to compress volume without significantly adding weight, the Ultra-Sil Compression Sack is an excellent solution. Made from a water-resistant, bluesign® approved Ultra-Sil 30D nylon fabric with Non-PFC DWR this compression sack is far tougher than its weight would suggest. 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.

Size Chart

X-Small: 6.0 x 6.0 x 11.7 in | 15.2 x 15.2 x 29.6 cm

Small: 7.1 x 7.1 x 14.0 in | 18.1 x 18.1 x 35.5 cm

Medium: 8.1 x 8.1 x 17.0 in | 20.5 x 20.5 x 43.3 cm

Large: 9.4 x 9.4 x 18.7 in | 24 x 24 x 47.5 cm

X-Large: 11.3 x 11.3 x 22.8 in | 28.8 x 28.8 x 57.8 cm

Product Details
  • Compress soft contents down by as much as two thirds
  • Side-release buckle compression straps for fast and easy access
  • Water-resistant, bluesign® APPROVED Ultra-Sil 30D Nylon fabric with a non-PFC DWR finish 
  • Three ultralight compression straps with two ladderlock and one side-release buckles allows easy access and reduces weight
  • Attached flip-top lid prevents straps tangling

Easy Returns

For all eligible items, we will gladly accept the return or exchange of new items within 30 days of the original shipment date of product for a full refund.

Free Shipping

Free shipping on orders over $150! We use UPS and USPS, and send tracking info as soon as your order is shipped.

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Ultra-Sil Compression Sack

Ultra-Sil Compression Sack


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