The Terramar Women's 3.0 Below Zero Beanie (Style W9214) is a mid-to-heavyweight performance winter hat built for extreme cold-weather thermoregulation. ClimaSense fiber fusion keeps you warm during high-exertion outdoor activity without overheating.Key Features ClimaSense Fiber Fusion: Regulates optimal body temperature in extreme cold. 3.0 Mid-Heavyweight Insulation: Built for below-zero conditions. 4-Way Stretch: Contours seamlessly to your head for a secure, comfortable fit. Advanced Moisture Management: Wicks sweat away rapidly to keep you dry. Brushed Inner Fabric: Traps air efficiently for added warmth. Built-In UPF Protection: Blocks UV radiation at high altitudes. Low-Profile Shape: Fits cleanly under sports helmets. Smooth Exterior Face: Prevents friction when layering hoods over the top. Specs Style: W9214 Color: Black Size: One Size Material: 89% Polyester / 11% Spandex Vendor: Terramar Category: Accessories / Cold Weather Headwear