Our bloomers are true to size. If you want a baggier fit, size up! I personally like to wear these as my everyday undies so I get them true to size. UGHHH they're so comfy I hope you like them!!! Here's a chart:

 US size UK size Buttercup size
0 - 4 4 - 8 S
6 10 M
8 12 L
10 14 XL