What is it? Our breathable wicking top should be used as a base layer beneath your jacket and/or fleece. The tops are 100% textured knit polyester performance fabric. The wicking properties will draw moisture away from your skin to keep cooler and drier, ideal for active sports such as snowboarding. In keeping with the nature of the garment the top is ultra lightweight, only 145 gsm. Features Board 4 Life sleeve print (please note the design of this sleeve text may differ from that pictured), just so everyone knows how you slide the hill.