Sea to Summit Ultra-SIL Compression Sack 20L – Ultralight, Space-Saving Gear Storage

Ultralight, Space-Saving Packing

The Sea to Summit Ultra-SIL Compression Sack in Highrise Grey is built for travelers who value space, speed, and organization. This ultralight sack can compress bulky clothing and gear to a fraction of its original size, helping you fit more into a single pack without sacrificing quick access to essentials.

Materials and design

Constructed from bluesign-approved 30D Ultra-Sil Cordura nylon with a non-PFC DWR finish, the fabric stays light while resisting light moisture. The slick surface reduces friction as you slide gear into the sack and into tight corners of a backpack, suitcase, or duffle. The round base stabilizes the bag and helps it sit evenly among your other items.

• Ultra-lightweight, water-resistant 20-liter compression sack reduces bulk by up to two-thirds.
• bluesign-approved 30D Ultra-Sil Cordura nylon with a non-PFC DWR finish for light moisture resistance and easy packing.
• Attached flip-top lid prevents tangled straps and hides a drawcord for quick access.
• Three straps provide even compression; two ladderlocks and one side-release buckle keep tension secure.
• Reinforced round base with webbing pull handle and double-stitched seams for durability.
• Dimensions: 9.4 x 18.7 inches; weight: 0.21 pounds; capacity: 20 liters.

Practical uses

• Backpacking: compress jackets, fleece, and socks into a neat core bundle to save space.
• Travel: condense bulky items to fit carry-on limits or fit in a packed suitcase.
• Camping: organize towels, hats, and small gear for quick access inside a larger bag.

Durability, warranty, and notes

Sea to Summit backs the Ultra-SIL with a limited lifetime guarantee against defects in materials or workmanship, reflecting confidence in long-term use.

Note: These sacks are water-resistant, not waterproof. They do not feature taped seams or roll-top closures.