I love Keen sandals. I've purchase four pairs, but this year... I'm so disappointed in the strap... After you get the sandal on, you have to rethread the strap before closing. Toddlers this age are learning to be self sufficient... So this design is a big fail... They lack the dexterity. Also, the foot opening is more difficult because the strap is already threaded on one side. If you skip the second threading, the strap slides up and rubs against my toddlers ankle....