“Already left a lengthy review on my other pair, so short version: Go for your regular size. Mine is Large & I'm 42 yo. About 138lb at 5'4 If you pick the wrong size, send em' back unworn for the EASIEST EXCHANGE EVER! Buying multiple pairs? Ok! They accept afterpay/Klarna so you can make payments every 2 wks. The quality & comfort is worth the extra $$ for me.”