Peak Performance of Sioux City, IA has been offering the best selection of athletic footwear, apparel and fitness equipment to exercise fanatics with everything they need since 1996. Our expert staff provides custom shoe fittings, gait analysis and running evaluations to ensure you find the right footwear for your unique needs. Whether you're a runner, walker, cross-trainer or lifting weights, we carry top athletic brands to keep you comfortable and performing at your peak. Our wide selection of exercise equipment, from weights to cardio machines, will help you achieve your fitness goals. We are licensed, insured and locally owned. Jim's philosophy is: "If I will not own it myself, I will not sell it in my store."