How Wildly Co. Fits - Left to Right:

Noah, age 8.
Wearing size 8 T and size 6 jeans. Noah is 48in tall and weighs 46.5 lb.
Cooper, age 6.
Wearing size 6 T and size 6 jeans. Cooper is 46in tall and weighs 41.5 lb.
Asher, age 3.
Wearing size 4 T and size 4 jeans. Asher is 40in tall and weighs 32 lb.
Eli, age 2.
Wearing size 2 T and size 2 jeans. Eli is 32in tall and 24 lb.

For product-specific sizing, a fit guide can be found on each product page