My 3 yr son has WIDE feet. I usually have to buy XW to find shoes that fit with decent to substantial support. This will be his 2nd pari of Keens he has ever worn. He it used to wearing Stride Rite & New Balance which comes in XW but the styles are limited when it comes to searching out supportive, XW sizes for a toddler. Fortunately, this particular Keen brand rain boots style happen to fit him & very well. He is a busy toddler & growing so fast that I tend to pay for better shoes to support his bone growth & spine support. Clothes can come in second hand, but not shoes. These shoes were shipped promptly & package well, I am very satisfied with this purchase & the brand. Yes, the price is in the high range for our income, so we hold back on other items to afford well-made, supportive & durable shoes that actually look & feel nice to wear. The only setback is finding sizes with desired color/style. So when you see what you want, grab it. They tend to go fast. We will be back for more I'm sure!