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The Nike Zoom SD 4 delivers a contoured support for elite-level performance
Small 11-12 inches Medium 13-15 inches Large 16-18 inches XL 19-21 inches 2XL 22-24 inches 3XL 25-27 inches 4XL 27-34 inches
the smaller pocket size
Relieves friction and hot spots to prevent blisters
Women's Alphafly 3 (600 - Bright Crimson/Cave Purple-Lime Blast) Brand_Birkenstock The Nike Zoom SD 4Fine tuned for marathon speed, the Alphafly 3 helps push you beyond what you thought possible. Three innovative technologies power your run: A double dose of Air Zoom units helps launch you into your next step; a full length carbon fiber plate helps propel you forward with ease; and a heel to toe ZoomX foam midsole helps keep you fresh from start to 26. 2. Time to leave your old personal records in the dust. Style FD8315 600
