The Nike Free Run+ 3 blends the strengthening and injury-prevention benefits of barefoot running with the comfort and protection of a running shoe. Breathable mesh and multi-layer upper provides a lightweight, second-skin-like fit. Adaptive fit midfoot construction brings customizable comfort. Sculpted Phylite™ midsole/outsole adds lightweight support and cushioning. Deep Nike Free sipes enhance flexibility for a barefoot-like ride. BRS 1000™ carbon rubber heel and environmentally preferred rubber offer durability. Waffle® piston outsole enhances cushioning and response. Removable insole. Wt. 8.6 oz.
Confused with size.
I want a 42.5 european size and I want to buy mens trainers so I am confused about which size the number refers to, the uk size or the mens size. 8 or 9?