The Fly Racing lightweight base layer jersey top is made with High-IQ Advanced Evaporation Technology, which comprises fast-wicking hollow-core fibres that transport moisture to the outer surface to dry quickly. Flat-lock seams provide enhanced comfort, and the multi-direction stretch fabric allows for an unrestricted range of motion. The open fabric structure offers lightweight warmth and all day comfort and this gives UPF 40+ sun protection. It also offers Polygiene odour Control Technology and ergonomic panels that are form-fitting (non-compression) for superior comfort.