Wellipets Red Ladybug Waterproof Rainboots Child Unisex Size US 8, UK 9, EU 27.  These boots would probably fit a two to three y-o child.  They actually measure 7” from heel to toe; 2.75” across the ball of the foot; 8.75” tall.  Boots have their insoles.  These boots were made by a London-based company.  

These are adorable boots still have soft and supple rubber; they are made of one piece, so there will be no water leaks.  I will tell you that there is a slight rubber smell to the boots, which has always been there and is not really bothersome to anyone. My granddaughter loved these boots. We don’t get much rain in the high desert, so she’d wear them with indoors or in her bathing suit when she went to the beach.  Happy Boots❤️