Kids' Wally Canvas Boat Shoe

I hate how inconsistent the sizing is on these shoes (the brand as a whole). My son is size 2 or 2.5 in other shoes. I got him these in 2 and he says they are too tight (without socks). Also got 2-3y and a 3-4y in 2 other styles. He said the 2-3y were also too tight (though slightly better than these) and the 3-4y were flopping on his feet when he walked. It's always a gamble with this brand and if you get final sale items (like I did), you are stuck with shoes you can't use. So disappointing.