I bought this to protect against the summer air conditioning, but I only tried it on and it's been stored at home. The design has buttons that fasten from the inside. This is a ribbed lavender-colored, V-neck M-size cardigan. - Brand: MISCH MASCH - Color: Lavender - Size: M - Material: 84% Acrylic, 16% Nylon - Design: Ribbed, V-neck, with buttons Thank you for looking.