The BILLY Goat Rainbow Tie Dye is engineered with certified orthotists to accommodate braces, orthotics, and prosthetics seamlessly. Its custom-molded last delivers generous width and volume throughout the toe box, vamp, quarter, and heel—eliminating pressure points and friction. Dual removable 3mm insoles let you adjust depth for a personalized fit. Triple-layered warp knit polyester lining resists tearing and withstands daily wear. The lateral heel flare and subtle forefoot rocker naturally assist your gait, reducing strain and promoting smoother propulsion. PDAC approved (L3202, L3203) for therapeutic footwear standards. Built for comfort that works as hard as you do.