These are so cute. My son loves sharks and these were the perfect sandals for him.I was worried about the sizing, but it is true to size. It is lightweight, secure, and has great traction on the sole. My son is very active so these are perfect for the summer and for him to wear whether in the water or playing around. I haven't noticed any cons yet, but I'll edit my review if anything does come up.The only con that I saw was the strap. My son wore these to daycare and with running around all day, it caused a little bit of redness and irritation, but I'm sure it'll get better the more he wears them.