Shop the On Running x Post Archive Faction Cloudmonster 2 'Thorn Brown'. Upgrade your sneakers collection today! Closure: lacing. Toe type: round toe. The limited edited ON x POST ARCHIVE FACTION (PAF) presents the Cloudmonster 2. Made up of lightweight fabric with a woven upper providing air avenues for a breathable step. The ultimate comfort from the renowened CloudTec® sole.