Columbia Men's Powder Lite™ II VestOmni Heat thermal reflective breathable lining retains warmth using silver dots that reflect body heat, so you stay warm and comfortable as temps drop Omni Shield repels moisture and resists stains by preventing liquids from absorbing into fast drying yarns, so you stay clean and dry in damp, messy conditions 100% recycled polyester Thermarator insulation keeps you warm with lightweight synthetic fibers that retain heat even when wet, so you stay