The Sonic Tee is an efficient short-sleeved tee, perfect for mountain running and fast hiking. It's designed with a regular fit in a lightweight, breathable fabric, finished with an odour control treatment to keep you fresh over many miles. Perfect for all-mountain action as a base layer or for wearing alone on warmer days. Lightweight and packable, it's great for multi-day hiking adventures and runs of any distance. A classic, versatile tee - easy to pair with your fitness bottoms of choice.Motiv Aero single jersey fabric with subtle mesh structure (85gsm) with odour control treatmentLightweight fast-wicking fabric with bulk yarn technologyMicro active low bulk seams, for strength and comfort next to skinRaglan sleeve construction100% PolyesterCentre back length (Size 10): 64cm / 25.1inchFit: RegularWeight: 69g/2.4oz