Grombows are soft and squishy, with a smooth, comfortable neoprene strap. The comfortable toe piece is secured with a box X stitch and is sewn with bonded nylon thread. There's also a 1/2" narrow strap option for the groms who like it fashionable! The Rainbow logo is found on both the strap and is embossed in the top sole. The bottom is the Rainbow Non-Slip sole. For the toddlers the four smallest sizes come with a back strap attached at the heel, and if you don’t need it, just cut it off!