Product Description This style uses dual sizing to give you the best fit. Check our size guide below before ordering to find your match. For early starts, late finishes, and everything in between. The Walero Active Half Zip is built for movement, made with ultra-soft, antimicrobial fabric and advanced Outlast® tech developed by NASA to keep your temperature just right. Flatlock seams and ergonomic thumb holes ensure all-day comfort, while a recycled YKK zip and soft chin guard give you a clean finish at the neck. Wear it layered up or on its own, it’s ready when you are. Technical details Recycled YKK zip with chin guard Chest pocket picked out in reflective stitching Ergonomic thumb holes Antimicrobial Active temperature regulation Materials 29% Cotton, 24% Polyamide, 20% Viscose Outlast, 19% Wool, 4% Elastane, 4% recycled Polyamide Size guide For men, we recommend selecting your regular size. The male model is 6ft1" and wears a size M. For women, we recommend selecting one size smaller that your usual size for a closer fit. The female model is 5ft9" / UK Size 10 and wears a size S. Product care Machine wash at a maximum of 30°C (or 86°F those across the pond!), but preferably colder to be extra eco friendly. You can use fabric conditioner if you wish. Please do not tumble dry, iron, or dry clean, and always dry flat. Delivery & Returns This product ships within the UK only. We offer free UK shipping on orders over £50, and £4.95 UK delivery under £50. Free returns on all UK orders.