“Almost always, I have to size up in undies. Not anymore, you can buy your regular size. I found this out by ordering XL & then sent them back (for the EASIEST EXCHANGE OF MY LIFE!). Buying clothes online would be sooooo much easier if every company did their exchanges like this! Now I have undies that fit me correctly, don't dig into my bikini line, & are soft + stylish. Plus they offer afterpay, so you can pay in 4 payments every 2 weeks. Quality clothing is worth the extra $$ for me. Reference: 42 yo 5'4 & 135-140lb (28-29 waist)”