Fila Unisex Secret Socks with Lettering - 2 Pairs/Pack - Cotton Secret Socks - White - 43-46. Fila unisex secret socks are an essential item in the wardrobe of every fan of casual, streetwear style. The Fila brand offers a great set, made of a high-quality blend of cotton, polyester and elastane. The small elastic part at the top of the sock helps to ensure comfort and proper fit. The brand's large logo is visible on the side. Available in 2 pairs/pack.