Designed to insulate, the OS Thermal Zip Neck features a 4-way stretch thermal fabric providing warmth and breathability. The interior grid structure enhances drying time while its moisture wicking capabilities keep you dry and comfortable all day. Cut for full freedom of movement with discreet thumb loops to hold the sleeves in place, this Zip Neck is ideal for wear all year round, worn under your waterproofs for sailing or for any activity around the water.
