Warm Essentials by Cuddl Duds Women's Active Thermal Crewneck Top, Black, Size S, NWT! #activewear #basics Active warm layers will keep you comfortable when you are on the go. Moisture wicking technology helps you stay dry. Made of a lightweight fabric, it is a sleek insulating base layer that keeps you warm and cozy in all types of weather. This long sleeve crew features contoured thumbholes for easy layering.