Trekker Chair is a lightweight kit to turn your mattress into a chair. It's hard to deny yourself the added luxury and convenience of a chair when it only weighs 13 oz (365 g). Thermarest's popular Trekker Chair uses ultralight nylon and fiberglass poles to pack small and creates a comfy place to rest and recover after a long day of hiking. The elastic sleeve edges stretch to fit both NeoAir® and self-inflating pads. The Thermarest Trekker Chair 25 fit sleeping mat with width of 63cm.