Northwave extreme triathlon shoes 2016 represents the maximum advance in triathlon from Northwave brand sneakers. It's the lighter market shoe for triathlons. it is a pure race shoe; therefore it has the oversized rear handle and large velcro strips. the extreme triathlon have been built using technology tip, the best engineering and combining the best materials (ultralight microfiber). Slipper of competition. Model for triathlons. Handle and oversized velcro. Ultralight shoe. -carbon fibre sole. Extreme air ventilation in template system. Lightweight microfiber construction.