The Pocket Hat as the name suggests fits in your pocket nicely. The pure merino construction is great at wicking away moisture & keeping you warm. Back on one side & Cargo on the other, so it is reversible if you fancy a change. Using a 200g/m² pure merino rib-knit fabric, Icebreaker are one of only a few companies in the world that use the best quality, super fine merino fibers in their garments; this results in a non-itchy quality not normally associated with woolen fabrics. When you are warm the wool transports moisture away from the skin & the evaporation of this moisture helps to cool you down; however the merino fibres also contain millions of tiny air pockets that retain body heat to maintain you body temperature when the weather turns cold. Close fit Great for the general outdoors, hiking, snow sports, running & fitness Lightweight Naturally odor-resistant Breathable Reversible UPF 50+