Sea To Summit Evac UL Compression Dry Bag 20L in High Rise gives lightweight, waterproof compression for backpacking and cycle-touring where every gram and litre of space counts.

This 20-litre Evac UL model pairs ultra-light Ultra-Sil 30D Cordura-yarn nylon with Sea to Summit’s eVac base so you can push air out of the bag while keeping water out — no purge valve needed. The Hypalon roll-top and Field Repair Buckle secure the opening while double-stitched, tape-sealed seams protect contents from moisture. Its four-strap compression system with ladderlocks and side-release buckles achieves even, controlled volume reduction for bulkier soft items like sleeping bags and clothing, and reinforced stitching at stress points preserves long-term reliability. Finished with a C0 non-PFC DWR, this bag is optimised for minimalist pack organisation and dependable wet-weather protection for lightweight expeditions and multi-day trips.

What We Love

The Evac UL 20L balances generous capacity with a featherweight construction: you get easy valve-free compression for larger soft loads and thoughtful waterproofing details that matter for internal pack storage. The combination of the eVac base and ultralight materials makes compressing and stowing kit faster and less fiddly on the trail.

Features:

• eVac air-permeable base for valve-free air purge
• Ultra-Sil 30D bluesign®-approved nylon with C0 non-PFC DWR
• Hypalon non-wicking roll-top with Field Repair Buckle
• Tape-sealed, double-stitched waterproof seams
• Four ultralight compression straps for even compression

110 g

47.6 x 24.2 x 24.2 cm

20 L

Ultra-Sil 30D nylon main body; eVac® fabric base; Hypalon roll-top

High Rise