📍 270 Sun Valley Mall, Concord, CA, 94520
📞 925-685-1879
🌐 striderite.com
📍 2380 Monument Blvd Ste C2, Pleasant Hill, CA, 94523
📞 925-521-9890
📍 2887 College Ave #1, Berkeley, CA, 94705
📞 888-996-6747
The purpose of the Optimal Performance Index System (OPIS™) is to provide objective data, through laboratory shoe testing, and subjective data, through clinical observations, to the athletic footwear industry and medical community, with the goal of reducing injuries and improving athletic performance.
📍 1504 A St, Antioch, CA, 94509
📞 925-305-1855
Welcome to Delta Shoes & Orthotics; Your local source for foot solutions, serving Antioch and the surrounding area with Orthotic friendly, hard to fit,
Updated Aug 2026
📍 2120 Vine St, Berkeley, CA, 94709
📞 510-849-3628
🌐 walkshop.com