Second Skin thermal wear is heat generating and perfect for those that feel the cold. A lightweight base layer made using a super soft stretch material whilst heat is naturally generated using the body's own warmth.This vest top features long sleeves and scoop neck and is perfect under any items of clothing to keep the chill out or for snuggling up on the sofa any night of the week. Long sleeved top Scoop round neckline Lightweight fabric making it perfect as an underlayer too. 58% Acrylic, 38% Viscose, 4% Elastane Machine washable.