STS - Sea to Summit Lightweight Compression Sack

The Sea to Summit Lightweight Compression Sack is the ultimate solution for compact, organized packing and efficient space-saving storage of compressible gear. Crafted from bluesign® approved recycled 70D Nylon fabric with a C0 non-PFC Durable Water Repellent (DWR) finish, this sack balances rugged durability with an ultralight weight to optimize your outdoor adventures.

Key Features:

• Compress soft contents down to one-third of their original volume, freeing up valuable backpack space for other essentials.
• Constructed from strong, recycled 70 Denier Nylon with a waterproof PU coating rated to 2,000mm hydrostatic head, combined with a bright white inner lining for easy visibility of contents.
• Water-resistant fabric ideal for gear storage inside your pack (note: seams are not tape sealed and there is no roll-top closure, so it is water-resistant rather than fully waterproof).
• Side-release buckle compression straps enable quick, secure compression and access.
• Attached flip-top lid prevents strap tangling during use.
• Lightweight at just 68 grams (5L size), allowing you to pack lighter without sacrificing protection.

Available Sizes & Dimensions:

• 5L: 29.6 x 15.2 x 15.2 cm | 68g – Perfect for a layer, beanie, and gloves.
• 8L: 35.5 x 18.1 x 18.1 cm | 86g – Ideal for a puffy jacket and a compact sleeping bag.
• 13L: 43.3 x 20.5 x 20.5 cm | 112g – Fits most three-season sleeping bags including synthetic varieties.
• 20L: 47.5 x 24 x 24 cm | 134g – Suitable for most four-season sleeping bags (except synthetics).
• 35L: 57.8 x 28.8 x 28.8 cm | 167g – Accommodates Sea to Summit sleeping bags plus extra layers or less technical cold weather sleeping bags.

Technical Details:

• Made with environmentally responsible, bluesign® approved recycled nylon fabric.
• Non-PFAS DWR finish ensures water repellency without harmful chemicals.
• PU inner coating provides high waterproof rating to protect contents.
• Designed for pack organization and efficient volume compression.

Whether you are compressing a sleeping bag, puffy jacket, or layering clothes, the Sea to Summit Lightweight Compression Sack is designed to help you maximize pack space with minimal weight added. Experience the convenience of modular packing that changes how you carry your gear.