I ordered these boots for my son (11), who is going on a backpacking trip with Boy Scouts in a month, because they are waterproof, look good, and are well priced.  I was happy when they arrived because they looked well made and sturdy.  However, when my son tried them on, his big toes touched the front of the shoe.  I ordered them in his correct size, 4.5.  About 2 weeks ago, I bought him 2 pairs of sneakers in that size:  Nike and Tony Hawk.  We measured his feet at the time.  Both pairs still fit fine, with room to spare in the front.  So I know 4.5 is his correct size.  I returned these and ordered a 1/2 size larger (size 5).  They are perfect!  My son really likes them, too.  He wore them to a week of Boy Scout overnight camp (that included hiking), a week of day camp (that included LONG hikes), and on a short Boy Scout backpacking trip.  The insides got wet when he walked in the river, but he told me that the water sloshed over the tops, so I do not know if they are really waterproof.  You might want to order up a 1/2 size in these boots, as they seem to run small.