Ergodyne GloWear 8925 ANSI High Visibility Orange Reflective Thermal Safety Pants, Small Class E Thermal Pants: Breathable 3M Thinsulate warmth and waterproof comfort. Weatherproof outer shell constructed of 100% Polyester; Breathable PU coating 3M Scotchlite Reflective Material, 2" Level 2 ANSI-compliant 80g 3M Thinsulate lining