Pantherella Cotton Lisle Heel & Toe Socks .8x2 ribbed cotton. Material: 80% cotton, 20% nylon. Made in England. Pantherella cotton lisle socks use a clean, smooth yarn which gives a silky, comfortable feel. Luxurious Egyptian cotton is the finest and strongest available. 20% nylon gives the sock stretch for fit and increases durability. Most Pantherella socks come in one size, and will fit up to shoe size 11.