Purchased the shoes twice. The first time was my mistake; ordered a size too small. Read the sizing guide and a 280 is meant to be a US 10 in men's. The problem is that the sole is a size 10 sole; but, the actual shoes fit more like a 9or 9.5. Highly upset that this wasn't clarified in the product description as the return process is extremely slow and convoluted; so, if I had known that they sized the shoes by the sole and not the actual shoes I would not have purchased as they would have been too small.