The Only Insoles Built To Return Energy In Every Step

Tennis is built on lateral quickness — the ability to explosively change direction and recover court position. VKs are designed to help improve lateral push-off efficiency through energy return, which may help sharpen first-step response on direction changes. For tennis specifically, where players are often playing at higher volumes on hard courts, the shock absorption may be equally important — helping reduce the cumulative joint loading associated with knee and ankle strain over a long season. Individual results will vary.

Yes, independent third-party studies have shown that athletes tested, on average, increased their explosiveness by 9.3%. For tennis players, this improvement can translate into quicker lateral movements, faster reactions, and more explosive sprints to the net, helping you stay one step ahead of your opponent.

Hard courts are one of the more common environments associated with plantar fasciitis development, particularly in high-volume players. VKs are designed to help reduce heel impact loading and support arch mechanics, and are APMA-accepted for their positive contribution to foot health. VKs are not a medical device. Consult your physician if you are currently experiencing plantar fasciitis symptoms.

Yes, VKTRY Insoles are very comfortable. Although the base is made of carbon fiber, the top portion of the insole is made with a softer EVA foam that supports & cushions the foot. It's important to note that every pair needs to be broken in, which typically takes a few short days of light training. Instructions on the break-in process come inside the packaging with your order.

Beyond plantar fasciitis, court sport athletes commonly deal with Achilles tendinitis (from repetitive push-off on hard surfaces) and ankle sprains (from lateral directional changes). The carbon fiber base is designed to help stabilize foot position during cutting movements, which may help reduce the inversion forces associated with ankle rolls, while the shock absorption may help reduce tendon loading over extended court sessions. VKs are not a medical device. Consult a physician or athletic trainer for any injury concern.

VKTRY Insoles are made with a full-length carbon fiber base plate, in which the flexibility (we call "Pro Level) comes personalized to your sport & weight. When you bend your foot to walk, run or jump, your foot is putting energy into the ground. A standard foam or plastic insole would disperse (and waste) that energy. VKTRY Insoles absorb that energy and then return back to you, similar to how a diving board or trampoline would. Athletes are proven to see greater explosiveness & ground force when wearing VKTRY, resulting in higher verticals and faster sprints.

Yes. No tennis governing body restricts orthotic insoles of any material. VKTRY Insoles are fully legal for recreational and competitive play at all levels under USTA, ITF, ATP, and WTA rules.

Every order comes with a 90-day money back guarantee. If there's any issues with the fitment, comfort or performance of your product, we will handle an exchange free of charge (customers outside of the USA must pay for postage). To get in contact, either chat with us by clicking on the question mark at the bottom right of the screen, call us by clicking on the phone at the top right of the screen, or email us at info@vktry.com