The 2XU Men's Ignition 1/4 Zip features a double-knit waffle construction that creates small air pockets to trap body heat in and keep you warm on those cooler runs. This quick-drying fabric also allows air to flow throughout, increasing breathability. The cuffs have thumbholes and flip over to become mittens for additional warmth. It features a zip pocket on the arm for storing small running essentials, and reflective logos for enhanced visibility in low-light conditions.