Full Product Info Fresh, clean casual style meets performance comfort in the Asics GEL Quantum 90 2 Street. Lightweight knit construction delivers a simple, comfortable design that draws attention to the action in the midsole. Asics GEL technology is shown off in the heel with the exposed 90 degree rearfoot GEL unit. Features Clean and lightweight knit upper design Internal heel counter for improved fit Visible 90 degree rearfoot GEL unit SpEVA midsole provides lightweight rebound underfoot AHAR sponge rubber outsole Show Size Guide Hide Size Guide .view{margin:auto;width:auto}.size-chart{border:0}.size-chart-wrapper{position:relative;overflow:auto;white-space:nowrap}.sticky-col{position:sticky;position:-webkit-sticky;background-color:#fff}.first-col{width:100px;min-width:100px;max-width:100px;left:0}.second-col{width:150px;min-width:150px;max-width:150px;left:100px}@media (max-width:767px){#sizechart-reb .table td,#sizechart-reb table td{display:table-cell;width:inherit}#sizechart-reb .table thead,#sizechart-reb table thead{display:table-header-group}} Asics Size Guide Shoe Sizes Shoe sizes on product details pages are in US shoe size. MEN'S SHOE SIZES US 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 14 15 16 17 UK 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 13.5 14 15 16 EU 36 37 37.5 38 39 39.5 40 40.5 41.5 42 42.5 43.5 44 44.5 45 46 46.5 47 48 49 50.5 51.5 53 CM 22.5 23 23.5 24 24.5 25 25.25 25.5 26 26.5 27 27.5 28 28.25 28.5 29 29.5 30 30.5 31 32 33 34 WOMEN'S SHOE SIZES US 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 13 UK 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 11 EU 36 37 37.5 38 39 39.5 40 40.5 41.5 42 42.5 43.5 44 44.5 46 CM 22.5 23 23.5 24 24.5 25 25.25 25.5 26 26.5 27 27.5 28 28.5 29 KID'S SHOE SIZES US 1 2 3 4 5 6 7 EU 32.5 33.5 35 36 37.5 39 40 CM 20 21 22 22.5 23.5 24.5 25.5 Features Clean and lightweight knit upper design Internal heel counter for improved fit Visible 90 degree rearfoot GEL unit SpEVA midsole provides lightweight rebound underfoot AHAR sponge rubber outsole