SIZING IS NOT BY SHOE SIZE; Please check the Sizing Chart from the Product Images for Correct Sizing ; Achilles Compression Ankle Brace comes in 6 Sizes, Based on the Circumference of Ankle, and Measured one Inch above Malleolus or Ankle Bone FDA REGISTERED MEDICAL GRADE ANKLE BRACE; Relieves Pain in the Back Heel caused by Inflammation or Swelling of the Achilles tendon as well as acts as Ankle Stabilizer; It Provides Medial and Lateral Ankle Support resulting in increased Joint Stabilization; Additionally Silicone Pads help to create a Massage Effect which Reduces Swelling and Increases Circulation LIGHTWEIGHT , PREMIUM QUALITY; Made with the Lightweight Superior Quality Medical Grade Material which offers the Highest Levels of Support, Recovery and Stability all Without Compromising our Customer Acclaimed Comfort and Fit. Made from Latex Free, Hand Washable, Odorless, Lightweight and Breathable 3D Knit Technology Fabric, it keeps you Dry unlike Other Cheap Neoprene Products 100% MADE IN THE USA; Proudly Made in USA and FDA Registered , Preferred Choice of Thousands of Customers Nationwide; Achilles Ankle Sleeve is designed with both the Athletic and Casual Customer in Mind as it can be worn with Sneakers or Shoes 3D KNIT TECHNOLOGY, FAST RECOVERY; Our Hi-Tech 3D Knit Technology Provides Anatomically Contoured Support and Targeted 4 Way Compression to the Affected Ankle Areas helping to ensure a Faster, more Comfortable Recovery. Ideal for Swelling from Arthritis or Osteoarthritis, Ligament Weakness, Tendinitis, Sprained or Sore Ankle Support, Decrease Pain Symptoms, Targeted Compression