サイズを小さく選びすぎないでください。小さすぎると、衣類がずり上がる原因になります。
XS/S: ジーンズサイズ1-5
M/L: ジーンズサイズ7-9
XL/2XL: ジーンズサイズ11-13
3XL/4XL: ジーンズサイズ15-16
The silicone grip on the top band actually stays put all day, no rolling or bunching under my summer dresses. They're lightweight and breathable enough for daily wear, though I'd stick to your true size since they fit snug.
Ran a bit small, so I'd say size up like the description warns, but once I did, the silicone grip on the top band kept everything perfectly in place under a summer dress all day. Super comfortable and invisible under clothes—I've basically lived in these for everyday errands and lounging.