Waterproof Mens Body X Single Layer 285G Undergarment Pants

HOLLOW FIBER: To achieve high thermal insulation without increasing weight, BODY X and BODY 2X are made of a hollow fiber polyester. It insulates far better than a regular fiber because it is hollow and filled with air.EXCELLENT WICKING: The technically advanced fabric in the BODY X and BODY 2X has excellent moisture-wicking properties. It is designed to pull moisture away from the skin by capillary action and out to the exterior of the fabric where it easily evaporatesMODULARITY: The undergarments are separated letting you choose different sizes and different insulations for the upper and lower body. Choose any combination you like.Newly developed, highly functional fleece material for an optimal body climate.Power Stretch Hollow Fiber- Better insulation than regular fiber because it is hollow and filled with air. (90% Polyester 10% Elastane) impeccable for everyday use. superior materials and excellent craftsmanship ensure long-lasting durability.