When the mad scientists-slash-explorers at Hyperlite Mountain Gear couldn’t find an ultralight, ultra-durable, minimalist expedition-style bag anywhere, they just constructed their own. Why count every ounce of your climbing or packrafting gear, and then put it in a heavy, overbuilt duffel? The Dyneema Duffel Bag was designed with mountain guides and explorers in mind. It’s narrower and a bit longer than standard duffels, so it fits into a Paris Expedition Sled—the standard for trips like Denali, Antarctica and Greenland. Yet, it still leaves 12 inches in the sled so guides can carry extra supplies. Drag this nearly indestructible beast upside down, pull it through airport terminals, or lug it around basecamp—it won’t fail you.