The super-comfortable Polyknit Warm Eco hat with reflective details from ODLO, which is made from 90 per cent recycled polyester and elastane, is a must-have for cold days. Whether you're running, cycling, cross-country skiing or skiing, this hat will keep you cosy and warm at all times. It fits perfectly under a helmet or head torch and can be easily stowed in your pocket when the temperature rises. This model is made from a reflective fabric that improves your visibility in the dark. Thanks to the quick-drying material, you'll always keep a cool head, even when you pick up the pace. Odlo - Polyknit Warm Reflective Hat black