The Subline+ Thermal Crew is purpose-engineered to form the foundation of every cold-weather fishing system. Designed to keep heat locked in and sweat moving out, it delivers consistent warmth, moisture control, and comfort through long, cold sessions on the water. Built with HYDRAFUSE™ GRIDtech™ thermal fleece, Subline+ traps warmth close to the body while body-mapped zones actively disperse sweat to prevent chill. An athletic, compression-fit design supports stamina and mobility, while flat-locked seams sit smoothly under outer layers — making it a true next-to-skin performance base layer. HYDRAFUSE™ GRIDtech™ Fabric: Heat retention with rapid moisture control Body-Mapped Zones: Disperse sweat for consistent comfort Athletic Compression Fit: Supports stamina on long sessions 4-Way Stretch: Unrestricted movement while casting and hauling BIO A.M.T™ Tech: Eliminates odour for extended wear Fit: Slim Weight (Size M): Crew - 275g