The Merrell Outventure range is designed to take adventure outdoors, with comfort, durability and high levels of performance, regardless of the terrain.These are more suited to the harsh environments of the winter with additional features to help keep your feet warm and comfortable.Upper/Lining:*Strobel construction offers flexibility and comfort*Synthetic coated leather and mesh upper*TPU waterproof shell*200g Merrell Opti-Warm lightweight, low-bulk, synthetic insulation keeps you warm in varying conditions*Merrell Conductor Fleece provides lightweight, versatile heat retention in varying conditions*Fleece is treated with Aegis microbial solutionMidsole/Outsole:*Moulded nylon arch shank*Compression moulded EVA footframe for stability and comfort*Merrell Air Cushion in the heel absorbs shock and adds stability*Removable EVA footbed*Merrell Snowbound Sole/Sticky Rubber