6.0's are nikes so called 'extreme sports range', not actually designed for skateboarding there suppossed to be tough wearing shoes for bmx, inline, skateboarding, free running, pogo sticking, unicycling, extreme kyaking, snowboarding bungeejumping and any other stupid ,for want of a better phrase, 'extreme sport' you can think of and are available in almost any shoe store where as the sb range is supposed to be skate shops only.