Drakes Pride's 2nd generation Solar trainer: its molded sole has a micro-grip rubber base to help prevent slipping. This single piece sole surface makes this one of the few shoes available today which is truly heel-less and bowling green friendly. The hi-tech breathable material from which the shoe is manufactured make this an incredibly lightweight and comfortable bowling shoe. The outer is fabric-free making it the ideal wet-weather footwear too. Full sizes only from 3 - 14. NB - Drakes Pride shoes are tightly sized - we recommend buying one size larger than your normal shoe size. If you wear a half size, then always buy a Solar 2 shoe of the next full size higher e.g. if you usually wear 9 1/2, buy Solar size 10.