Sea to Summit Ultra-SIL Compression Sack 35L – Ultralight, Water-Resistant Gear Storage for Travel & Camping

Meet the Sea to Summit Ultra-SIL Compression Sack in a 35-liter size, a lightweight, durable solution designed to help you pack smarter. This pack-friendly sack reduces bulky clothing and gear, making room in backpacks, suitcases, or duffels without sacrificing quick access or organization. The 35L model balances generous capacity with a compact, travel-ready footprint, perfect for weekend trips or longer outdoor adventures.

Efficient packing for adventures

• Ultralight compression that can shrink bulky items by up to two thirds, freeing precious pack space.
• Bluesign-approved 30D Ultra-Sil Cordura nylon with a non-PFC DWR finish for a lightweight, slick packing experience.
• Slippery fabric aids sliding bags into tight spaces, enhancing packing efficiency in tight compartments or luggage.
• Attached flip-top lid prevents tangled straps and provides quick access to contents when needed.

Durable, responsible materials

• Crafted from bluesign-approved 30D Ultra-Sil Cordura nylon to prioritize responsible materials and performance.
• Non-PFC DWR finish offers water-resistant protection without making bold waterproof claims.
• Double-stitched seams reinforce stress points for added strength during rugged trips.

Thoughtful design for real-world use

The sack features a round base with a reinforced webbing pull handle for easy carrying, plus three compression straps (two ladderlock buckles and one side-release buckle) for even pressure distribution. Its dimensions for the 35-liter model are 11.3 x 22.8 inches and the sack weighs about 0.26 pounds, making it easy to carry without adding noticeable weight to your load. Note that while water-resistant, these stuff sacks are not taped-seam or roll-top waterproof solutions.

Sea to Summit backs its products with a lifetime guarantee against defects in materials or workmanship, offering added peace of mind for outdoor enthusiasts. Available in five sizes (5, 8, 13, 20, and 35 liters), it’s designed to accommodate everything from small essentials to larger volume gear, providing a flexible storage option for backpacks, suitcases, or duffle bags whenever you travel or camp.