Celebrating my siblings’ big milestones called for dresses that felt equal parts polished and pretty. I found these perfect graduation guest dresses—elegant, breathable, and totally twirl-worthy for all the proud sister moments. Linking my favorites (and a few extras I almost picked!) for your next spring/summer event. graduationguest ltkstyle eventdresses sisterstyle springfashion ltkunder100 LTKSummerEdit LTKFindsUnder100 LTKBeauty