Heelys Roller shoes REZERVE LOW. Available in kid's sizes. You no longer need to put on a pair of in-line skates or hop on a skateboard to travel on wheels, thanks to Heelys! Ingenious and fun, this model has a wheel attached under the rubber sole. Their fabric lining and synthetic insole make for a comfortable fit. With a synthetic upper in grey, the Rezerve Low really has everything! PU upper; padded tongue and collar for optimal comfort and protection. Full lace closure. Durable rubber sole with abrasion resistant brake pad. Low Profile Wheels, ABEC 5 Bearings.