The BaaBaa Blend Long Sleeve Baselayer combines the superior temperature regulation and odor controlling properties of merino with the excellent moisture management properties of synthetic fibers, giving you the best of both worlds for natural insulation. This long sleeve merino baselayer is built to insulate and regulate your temperature while maintaining a high warmth-to-weight ratio. The non-mulesed merino blend provides soft, itch-free comfort and is naturally odor resistant and fast drying. The baselayer is easy to care for with machine wash capability.