The Sonic LS Zip is versatile and lightweight ideal for mountain running and fast hiking. Designed with a relaxed fit, raglan sleeves and an odour control treatment to finish off. Fabric-wise, it's created using Motiv Aero fabric, making it fast-drying, quick-wicking and highly breathable. With its technical material, it wicks moisture away from the skin keeping you dry whether you are running, cycling or taking on a tough ascent. It also has a high collar for when you need your neck warm, thumb loops and orange and blue half zip for rapid cooling. Motiv Aero single jersey fabric with subtle mesh structure (85gsm) with odour control treatment Microactive low bulk seams, for strength and comfort next to skin Collar and deep venting lightweight YKK chest zip Raglan sleeve construction Hidden stretch thumb loops 100% polyester Centre back length (Size M): 70cm / 27.6inch Weight: 130g/4.6oz