Optimized Fit For Roomy Active & Casual Shoes: Protalus M-100 insoles provide long-lasting comfort and support for roomy active and casual shoes. Built to last, the M-100 insoles maintain their supportive structure for up to a year thanks to premium, durable materials. Whether you're running, playing basketball, or spending more time on your feet, these insoles are the perfect choice. Patented Alignment Technology: Protalus insoles optimize your body’s alignment by featuring the deepest heel cup on the market. This design holds the heel in place, preventing excessive inward or outward movement, relieving stress on your feet, ankles, knees, and hips. Dynamic Arch Support: As you walk, Protalus insoles stabilize your ankles and guide your feet to their natural position. This allows your arch to move efficiently, relieving stress throughout the body. Optimized Weight Distribution: With every step, up to 5x your body weight is exerted on your weight-bearing joints. Protalus insoles help evenly distribute this pressure, reducing strain on your joints and feet. Lab-Proven Relief: At Protalus, we've based our unique insole design on 50+ years of medical research and third party laboratory testing. It's no coincidence that over 95% of people who try Protalus have positive results, it's by design. Protalus M-100 insoles are proven to correct over-pronation through Protalus’s patented alignment technology. With the deepest heel cup on the market, Protalus insoles deliver superior comfort, alignment, and support. M-100 insoles are recommended for roomy active and casual shoes. Made from durable materials, these insoles are made to last up to a year.