Inov8 Parkclaw G 280 Trail Running Shoes The ultimate road-to-trail running shoe, designed for adventure from the door. The Parkclaw G 280 with Graphene. Turn off the road, escape the grey and unearth your wild side. Inov8 Shoe Fit Scale For technical footwear, a good fit is essential to enhance your performance. Inov8's new Shoe Fit Scale makes it easier to find the perfect fitting shoe. All Inov8 shoes are designed with Met-Cradle technology to lock down the mid-foot for a stable hold, where they differ is in the toe box. The shoes are now graded from 1 to 5, Grade 1 representing their closest, most precise fit and Grade 5 representing the widest fitting toe box. The lower the number on the scale, the narrower the fit, which ensures minimal internal movement of the foot when running fast on technical terrain. Shoes with the higher numbers on the scale will suit athletes with a wider foot and those wanting that extra comfort in the toe box. This wider toe box allows the toes .