The eVent® Compression Dry Sack earned a Backpacker Editors' Choice Award in 2007, and there is no question that it's still a winner today. Made from a sturdy 70D Nylon waterproof fabric in the body and lid, with an eVent® waterproof but air-permeable base that allows air to be pushed out of the sack. No need for a purge valve, making these lighter and simpler. The four compression straps, use hypalon roll-top non-wicking closure. These dry sacks are the epitome of durability, versatility, and compression.Highlights DurabilityIdeal for backpacking and sea kayaking, but avoid pointed gravel / other sharp objectsWaterproofness10,000mm hydrostatic head – more than sufficient water protection for paddle use (avoid full submersion)Best UseBackpacking, Bike Packing, Camping & Water Sports Sizing/Use XS / 6 liters: Extra layers or a high-performance sleeping bag (such as the Spark 25°F) or a quilt (Ember 25°F)S / 10 liters: a two-season or a high-end three-season down sleeping bag or a larger puffy jacketM / 14 liters: a mid-range three-season sleeping bagL / 20 liters: a three-season synthetic sleeping bag plus a Reactor LinerXL / 30 liters: a four-season down sleeping bag plus a Reactor Liner or a mid-range three to four season synthetic sleeping bag Dimensions Length - Measured with roll-top closure open Volume - Measured with closure rolled 3 times S / 10 Liter M / 14 Liter L / 20 Liter XL / 30 Liter Compressed Volume 10L to 3.3L 14L to 4.5L 20L to 6.7L 30L to 10L Dimensions 7 x 16 in / 18 x 40 cm 8 x 18 in / 20 x 46 cm 9 x 20 in / 23 x 50cm 10.5 x 23 in / 27 x 58 cm Gear Capacity (L) 10L 14L 20L 30L Weight 4.5 oz / 129g 5.2 oz / 148g 5.9 oz / 168g 7.4 oz / 210g Features The eVent® Compression Dry Sack won the Backpacker Editors’ Choice award, 2007 Waterproof Hypalon roll-top closure with lid and 4 straps for compressionAir-permeable eVent fabric base allows air to be pushed out but water can't get inRugged 70D Nylon bodyWaterproof seams - double stitched and tape sealedReinforced stitching on all stress pointsPull handle on the bottomAs of 2018: Features the patent-pending 5/8in | 15mm Field Repair Buckle with stainless steel pins