[Skip to content](/content/pages/running#MainContent/index.html) [Free Standard Shipping. 90 Day Money Back Guarantee.](/content/products/t-100/index.html) Athletic Performance Insoles — Protalus Landing Gear Protalus Landing Gear — Sports Performance # Every field is flat. Your foot wasn't built for that. Flat surfaces cost **2–3% running economy** every step — a debt that compounds across a full game. Landing Gear restores the joint geometry your sport needs, closing the gap from the first step. 90-day money-back guaranteeFree standard shipping99,000+ verified reviews [Get Landing Gear — M-100](/content/products/m-100/index.html) [Start with T-100](/content/products/t-100/index.html) Landing Gear technology is universal — find which one your footwear can accommodate. \\ \\ M-100 Insoles. Maximum Alignment, Complete Control.\\ \\ $64.95Shop Now](/content/products/m-100/index.html) \\ \\ Protalus T-100 (Thinner Fit) Orthotic Insoles - Alignment Support for Flat Feet & Overpronation\\ \\ $64.95Shop Now](/content/products/t-100/index.html) **2M+** customers [**99K+** verified reviews](/content/products/m-100#reviews/index.html) **95%** recommend **90-day** guarantee Landing Gear technology is universal — find which one your footwear can accommodate. 2–3% **Running economy lost per step** on flat surfaces — every field, court, and track. 35–50% **Of mechanical energy** should come from elastic return. Flat ground prevents it from firing. 28 of 31 **Correct joint range in M-100** vs. 0 of 31 on standard foam — independent 3D motion capture. Independent testing by Dr. Martyn Shorten Ph.D., former Director, Nike Sport Research Laboratory. [Full methodology →](/content/pages/the-science/index.html) The mechanism ## Every move you make starts from the ground up. Bat speed. First step quickness. Shot power. Change of direction. All of it originates from ground reaction force transmitted through the same chain. Break that chain at its base — the subtalar joint — and every link above it works harder than it should to compensate. Thousands of times a game. Ground → STJ axis → Knee → Hip → Core → Output Pronation at heel strike stores elastic energy in the plantar fascia, Achilles, and intrinsic muscles. Supination at push-off releases that energy like a spring — but only if the heel lands on the correct oblique axis first. A flat field, court, or track can't send that signal. **Disrupt the axis loading and you don't just lose some efficiency — you lose the mechanism entirely.** Landing in slight supination on the correct geometry is like pulling back a bow. On flat turf the bow is never drawn — every push-off is a release with nothing behind it. That's not a technique problem. That's geometry. [The full mechanism, if you want it →](/content/pages/the-science/index.html) Your sport ## Different sport. Same floor. Same fix. Baseball Bat speed & exit velocity Football First step explosion Soccer ~9 sec per 3km Basketball Vertical jump & landing Tennis Split step & serve Pickleball Lateral reaction speed [Get the edge — M-100](/content/products/m-100/index.html) Give your body the ground it was built for. Free shipping · 90-day guarantee · Ships today [Get M-100](/content/products/m-100/index.html) [Get T-100](/content/products/t-100/index.html) What off-axis loading is linked to ## The same mechanism that costs performance also shows up in these. Not inevitable — the documented output of correct anatomy on incorrect geometry. Turf toeACL & non-contact knee injuriesAnkle sprainsHip degenerationPlantar fasciitisLower back — rotational athletes The edge you've been looking for ## Superman has Kryptonite. You have _Landing Gear._ Every athlete on that field is competing on the wrong surface. Most of them always will. Your body was built for different ground. Now you can give it back. [Get Landing Gear — M-100](/content/products/m-100/index.html) [Start with T-100](/content/products/t-100/index.html) Want the full picture? ## Read on if the science brought you here. [The Science\\ \\ Full biomechanical argument, with sources](/content/pages/the-science/index.html) [What Is Landing Gear\\ \\ Not an insole — here's the distinction](/content/pages/what-is-landing-gear/index.html) [Earn as an Ambassador\\ \\ Get paid for every sale you refer](/content/pages/evangelists/index.html) **$64.95** 90-day guarantee [Get M-100](/content/products/m-100/index.html) - Choosing a selection results in a full page refresh. - Opens in a new window. ## Shopping Cart \| 0 items FREE US SHIPPING ON ALL ORDERS Subtotal:$0.00Taxes and discounts are calculated at checkout. 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