This innovative smart waistcoat adds an extra layer of cold-weather protection without bulk. Worn over a base layer in spring or beneath a shell in winter it adapts effortlessly to changing conditions ideal for commuters cyclists and outdoor workers. Features and Benefits For cyclists wanting to marry style and speed while they ride and stand out above the rest Ale Body Mapping technology combines specific fabrics with anatomic study to ensure performance and a perfect fit Patented fabrics selected for lightness and high wear resistance whilst providing the correct degree of compression and muscle support during a ride Collarless design for no irritation while riding Cam-lock Zipper for a secure fit at all times with no chance of movement Reflective logo so riders can be seen at any time of the day Fit and Collection: Who said that cycling should only be a serious business? PR-E is designed for cyclists in search of a touch of colour style and imagination in their kit. When you buy PR.E you can be assured your kit features many design features for high performance. PR.E is a close race fit. Ale's size guide can be found here: https://aleclothing.com/sizeguide Details and Materials: Recommended temperature: 18/30 degrees Main material composition: 85% Polyamide 15% elastane Weight: 170g Care Instructions: Washing machine at 30 degrees Do not use bleach Do not dry clean/ iron/ tumble dry Wash similar colours together