Material Composition: 100% Polyester About this product Material Composition: 100% Polyester Description Product introduction A lightweight, quick-drying base layer that actively uses Polygiene® odor control. It uses lightweight Motiv-G™ fabric treated with Polygiene® STAY FRESH, an odor control technology that keeps you feeling fresh. Approximate measurements Length: 57 cm Width: 38 cm Sleeve length (raglan): 20 cm Brand Description Rab is a globally renowned UK brand, a leading company that develops high-quality clothing, sleeping bags, tents, backpacks, gloves, gaiters, and other gear specializing in extremely cold environments and alpine mountaineering around the world. Currently, it has an office and factory in Derbyshire, East Midlands, central England, and has been developing by opening offices in the United States, Canada, and various parts of Europe in recent years. It has received the Editor's Choice award (annual best product award selected by experts, etc.) from the popular US mountaineering magazine "Backpacker" several times in recent years, and has received enthusiastic support from consumers in Europe and the United States. Rab is named after the nickname of the founder, Robert.