Wear under a helmet or as a standalone hat
Stretchy, warm, wicking, wind-blocking, and thin
Made of dual-density, micro-denier Thermax fibers
The Seirus Dynamax Skull Liner is thin enough to be worn under a helmet yet warm enough to wear as a standalone hat. Exclusive Dynamax technology - composed of dual-density, micro-denier Thermax fibers - yields more stretch, more warmth, more moisture wicking, and more wind blocking than ever before. Imported.