Assos Ultraz Winter LS P1 long-sleeved underwear jersey the warmest jersey, designed for the coldest temperatures and most extreme weather conditions and perfected with an ultra-high collar, additional odorControl properties and a highly stretchy wool blend fabric to provide thermal insulation that follows the lines of the body. Thanks to the blend of merino wool and highly insulating and elastic synthetic fibers it is made from, Ultraz P1 is the warmest first layer, complemented by the collar's neckwarmer structure that allows for extended protection. Unlike pure wool, its ultra-soft fabric does not cause irritation, while its high elasticity ensures that it never loses its shape even when stretched. In addition, this pattern moves along with the body, offering a low bulk fit and snugness like a second skin that retains heat and allows perspiration to breathe, key properties to ensure maximum comfort during the coldest days of winter.

• Circular Seamless: A tubular technology jersey with no side seams that can give you an ultra soft and comfortable feel on the body.
• Circular Sleeves: The sleeves are directly sewn into the armholes, promoting full range of motion under the upper layers.
• Composition: 50% polypropylene, 31% wool, 10% polyamide, 6% elastane, 3% carbon fiber.
• Color: calypso blue.