On Swiss Performance Running Shoes & Clothing On Swiss Performance Running Shoes & Clothing On Canada On Swiss Performance Running Shoes & Clothing On Australia On Swiss Performance Running Shoes & Clothing On Swiss Performance Running Shoes & Clothing On Core Run Sock Mid 2P Unisex Black Eclipse. Sets the groundwork for a strong run. These ventilated, cushioned socks offer breathable support. Key Features Weight: 38g Comes in a set of two pairs Mid cut design Maximum underfoot cushioning for every run Ventilation through side panels Arch support you can feel Rib structure on the cuff Logo detailing Materials Recycled content: Total recycled content: about 90% Product assembled at Intersocks, Slovenia Care Instructions Cold machine wash Do not bleach Do not dry clean Do not iron Do not tumble dry Material & Transparency 54% Cotton (Organic) 42% Polyester (Recycle) 4% Elastane Size Guide Unisex Socks XS S M L EU 35 38. 5 39 42. 5 43 46 47 49 WOMEN US W 4 7. 5 W 8 10. 5 MEN US M 7 9 M 9. 5 11. 5 M 12 14 UK 3 5. 5 6 8. 5 9 10. 5 11 13 JP 22 24. 5 25 27 28 30 30. 5 32 BR 33 36 37 40 41 43 44 47