First-layer shirt for high-output activities in cool conditions. Designed for comfort in motion, this is a first-layer crew for a range of high-output activities in cool conditions. An engineered polyester made with wicking fibres, Phasic AR II fabric provides outstanding stretch, UPF 40 sun protection, and thermal comfort. The streamlined fit lets you wear it as a base layer or standalone, thumb loops hold your sleeves in place, and low-profile seams and ergonomic patterning maximize freedom of movement and all-day comfort. Full Product Features Technical Features - Moisture-wicking - Breathable - Lightweight Construction - Low profile seam construction to reduce chaffing - Phasic™ AR II engineered polyester fabric is soft, offers stretch and thermal comfort, and is made with wicking fibres Cuff & Sleeves Configuration - Thumb loops secure the cuffs and sleeves to keep hands covered for warmth and sun protection Design & Fit - Fitted, with articulated patterning for mobility and comfort Fabric Treatment - FC0 DWR (Durable Water Repellent) finish repels moisture and is PFAS-free Patterning - Ergonomic patterning construction for mobility and comfort Sustainability - Biocidal Disclosure - This model was treated with an anti-odour biocidal product (Active Ingredient: Silver Nitrate) - PFAS (Per- and polyfluoroalkyl substances) Compliant UPF Rating - 40 Materials - Body: Polyester double knit, Silvadur finish, FC0 finish on yarn, peached on back, 130 gsm - 100% Polyester - Origin of fabric: JAPAN - Origin of dying: JAPAN - May release plastic microfibres into the environment when washing