Specialized has acheived the holy grail of construction and materials in the Seamless Merino Base Layer. Starting with natural moisture wicking and odor resistant merino yarns, we blend in synthetics to aid in moisture movement, compression and durability. By utilizing special cylindrical knitting machines, we construct a virtually stitch and seam-free garment that reduces the possibility of irritation. Designed for next to skin under jerseys and jackets, the merino yarns adds insulation and warmth for cold weather compared to our standard Seamless Base Layer. Compressive, articulated, form fit.