Joe Nimble nimbleToes tennis shoes are adjustable with laces and have a 4mm thick Vibram® Nimble rubber sole. These shoes are suitable for both indoor training and outdoor wear. Inside the shoes is an antibacterial and moisture-absorbing removable 4mm thick Joe Nimble Bioactive insole. Pleasantly light and airy model. Fits an average foot. Fastening: laces Material: textile Lining: partially textile lining Sole: 4mm Vibram® Nimble rubber sole Insole: removable 4mm Joe Nimble Bioactive Suitable for vegans. Minimalist measurements for the nimbleToes model UK Size EU Size Inside length 5 38 25 5.5 38.5 25.5 6 39 25.6 6.5 40 26 7 41 26.3 7.5 41.5 26.9 8 42 27.3 9 43 28 9.5 43.5 28.6 10 44 29.1 10.5 45 29.5 11 46 29.5