Isuka is a Japanese brand known for its specialized sleeping bags, crafting sleeping bags for mountaineering and camping. From winter mountaineering to three-season tenting, Isuka strives to balance warmth and packability to suit Japan's climate and mountaineering styles. Their extensive lineup ranges from lightweight models using high-quality down to easy-to-handle models using synthetic fiber filling. They clearly display fill power and comfortable operating temperatures, making it easy to choose the right product for your needs. Representative models include the all-around "Air 450," the "Air 280" for summer mountaineering and lightweight options, and the high-grade "Air 810EX" for high-altitude climbing in the coldest winters. This page features used Isuka sleeping bags and sleeping bag covers, as well as other outdoor gear.