Chaco Men's Shoes Size Chart
  7 7frac12; 8 8frac12; 9 9frac12; 10 10frac12; 11 11frac12; 12 13 14 15
USA Men's Shoe Size 7 7frac12; 8 8frac12; 9 9frac12; 10 10frac12; 11 11frac12; 12 13 14 15
UK 6 6frac12; 7 7frac12; 8 8frac12; 9 9frac12; 10 10frac12; 11 12 13 14
Euro 40 40frac12; 41 41frac12; 42 42frac12; 43 43frac12; 44 44frac12; 45 46 47 48
CM 25 25frac12; 26 26frac12; 27 27frac12; 28 28frac12; 29 29frac12; 30 31 32 33

These are general guidelines only, sizes are not guaranteed. But no worries, since at SunnySports we offer our exclusive PFF Guaranty