Women's ULTRA Merino 145 LS Crew | Vias YGroup_80005 While the vest is not

While the vest is not in use

5-micron fiber

and a seamless construction provides ridge-free comfort at fabric transitions

The DWR 3DeFX+ active insulation now features siliconized fibers that resist saturation to maintain insulation in wet conditions

a built-in waist belt

Women's ULTRA Merino 145 LS Crew | Vias YGroup_80005 While the vest is notBest Use: All Conditions The Womens ULTRA Merino 145 LS Crew is made from a high performance blend of New Zealand Merino wool with a nylon core for added durability. Its lightweight, incredibly comfortable, and versatile across all conditions. It serves as standalone next to skin top in warm conditions and as a base layer in colder conditions. Low sheen, itch free, moisture wicking, and naturally odor resistant, the ultra fine 17. 5 micron Merino wool