Harder, stronger, faster: Storelli SpeedGrip Insoles promise to improve your athletic performance.Designed to replace existing, often slippery inserts, SpeedGrip aims to prevent the wearer’s foot from shifting around inside their sneakers.From the makers of BodyShield and ExoShield protective soccer gear, this new invention features a suede surface, soft foam layering, and heel tab to help bond your sock-covered foot to the sole of “most types of sports shoes.”“Not only do [they] produce a qualitative improvement in traction but [test subjects] reported something even more important: SpeedGrip Insoles make you feel faster,” the project’s crowdfunding page said.via Storelli“The psychological aspect is as important as the physical aspect since the more connected a player feels to their gear, the more they can rely on it,” according to the Brooklyn-based company. “Ultimately this creates more chance of magic on the field.”Built out of extreme pressure and heat, the thin, lightweight, non-woven, Artholite foam accessory claims to block germs and odors, provide extra support, and eliminate heel lift. Plus, they create even more grip when damp or wet. Users can simply trim the insoles for a custom fit inside any men’s or women’s footwear.Storelli plans to ship its first batch of SpeedGrip Insoles to Kickstarter backers this month; the firm has surpassed its $15,000 funding goal, earning $36,884 from 746 supporters as of press time.via StorelliEarly-bird buyers can snag a discounted pair of athlete-approved insoles for $35; the product will retail for $39.99. Team owners and managers can choose from bundles of two, five, or 11 sets ranging from $49 to $315.“Whether you’re a top-level player or a weekend warrior, whether your game is soccer, basketball, baseball, tennis—or even skateboarding or cycling—you can upgrade your sports shoes with SpeedGrip Insoles to gain that extra power, speed, and control that you need,” the project page said.