What Our Gearhead(R) Experts Are Saying: "The 8L Evac is my go-to for bulkier insulation on multi-day trips. It holds a surprising amount, but once you squeeze the air out, it packs down much smaller than a standard dry bag. It's a great middle-ground size for dialing in pack volume."We turn to the Evac Lightweight Dry Bag 8L when we need dependable waterproof storage without sacrificing space efficiency. Sea to Summit built this size to handle bulkier compressible gear like insulated jackets or sleeping bags while still allowing us to squeeze out excess air and maintain a clean pack layout. It's a favorite for multi-day backpacking, bikepacking, and extended travel where organization matters. The eVac waterproof yet air-permeable base lets air escape after sealing, reducing volume while keeping contents dry. A recycled 70D nylon shell with fully taped seams provides reliable protection, and the oval base shape makes it easier to nest inside backpacks, panniers, or frame bags. Lightweight and purpose-built, the 8L Evac helps us carry more efficiently without overpacking.