(TrendHunter.com) Proof has launched the ‘Sevens Sport Short,’ a redesigned training short made from stretch ripstop nylon with moisture-wicking and ventilation panels for unrestricted movement. The Proof Sevens…(TrendHunter.com) Proof has launched the ‘Sevens Sport Short,’ a redesigned training short made from stretch ripstop nylon with moisture-wicking and ventilation panels for unrestricted movement. The Proof Sevens…