Mens Soft Bright Fluorescent Neon & Happy Birthday Fancy Party Crazy Socks These are great socks for 70's 80's 90's parties and for wearing with fancy dress Suitable for size UK 6-11, EU 39-46 80% Acrylic, 18% Nylon, 2% Elastane Light & Breathable for All Day Comfort Machine washable at 40 degrees