ReEarthRunners was created to bring new life to sandals that are in perfectly functional condition, whether they be discontinued models, lightly used returns, or feature a cosmetic factory defect. Learn more here. The Alpha will keep you secure while leaving you free to flow through your environment effortlessly. The Alpha features a 10.5mm Vibram® sole, Perfect for those new to minimal footwear or looking to go the extra mile. Weight: 4.4 oz (single sandal, men's 9 / women's 11) Thickness: 9mm outsole + 1.5mm footbed = 10.5mm Sole: Vibram® Morflex Outsole (Globally Sourced) Footbed: Earth Grip (Moisture-wicking Canvas, GOTS (Organic) Certified Small Batch Dye)