Stay warm and comfortable on the job with the SHK-1 Fleece Helmet Liner. This premium thermal helmet liner is specifically designed for a snug, secure fit under your SHK-1 safety helmet, providing essential insulation in cold and harsh work environments. Crafted from a high-performance blend of 97% polyester and 3% elastane, this soft fleece liner offers superior warmth, moisture-wicking properties, and flexibility to keep you focused and productive throughout your entire workday.