Feetures Graduated Compression Socks NEW - washed but never worn Fits women’s shoe size 4 - 6.5 Light cushion These are gray. The picture of the blue socks are identical to the gray ones that are listed here for sale. Let me know if you have any questions! Product Details from Feetures… Targeted Compression and anatomical design provide an unmatched Custom-Like Fit. Anatomical right and left foot design enhances fit, delivering maximum comfort and protection by helping to eliminate blisters. High density cushioning provides cushioned comfort without the bulk. The Perfect Toe®. (No irritating toe seam.) Offers 15-20mmHg of compression at the ankle. 85% Nylon 15% Spandex. Machine wash cold. Tumble dry. No bleach or fabric softeners. For best results, wash socks inside out. Calf Circumference varies by size: Small 9.5-12 in/25-31 cm