If you want to compress your gear for your cycling, hiking, or kayaking trip while keeping it dry, the Evac Lightweight Compression Dry Bag from Sea to Summit is the perfect solution. The bags come in various sizes and can hold items like spare clothes or your sleeping bag. The advantage over regular storage bags is that the Evac Lightweight Compression Dry Bag keeps its contents truly dry thanks to its waterproof outer material with C0 treatment, roll-top closure, and sealed seams, all while being compact enough to fit in your backpack or bike bag. The durable 70D bottom material with PU coating is waterproof but allows air to escape. When compressing, you can simply push the air out without needing to operate an extra vent. The compression straps make it easy to evenly compress soft items.