JC Prenner wrote a review of Five Ten Copperhead Climbing Shoe on August 26, 2011
Sizing: They are unlined so they stretch at least a half size. The rubber is Onyx which seems very good. The fit for me is great, I have Morton's toe, index toe is longer than the big toe. Use: I use these shoes at the gym and outdoors in cracks and on face climbs. Yes, your feet will turn bright orange.