Athletic Propulsion Labs - Twin founders Adam and Ryan Goldston's training as collegiate athletes informs the exacting processes behind Athletic Propulsion Labs' design ethos and these navy Bliss trainers are the label's lightest running shoe. Constructed from a seamless knitted TechLoom upper, they're reinforced with bonded panels at key pressure points and secured in place with a custom-milled satin footstrap. Fit runs true to size. LEATHER UPPER, RUBBER SOLE