Dmt hydra carbon speedplay road shoesthe dmt hydra carbon speedplay road shoes are fastened with dmts unique boa system closure which uses an integrated tongue and two additional velcro straps to lock your feet in for a secure and comfortable fit the perforated polypropylene insole supports your foot while providing enhanced ventilation the hydra speedplay road shoes are constructed with a microfibre nylon mesh upper with a honeycomb construction for superior aeration featuresbreathable mic