NWT Free People Movement Back It Up Cutout Onesie In Pool Blue $98 Retail Sold Out Online Approx. Measurements XS Chest: 13" Waist: 13" Inseam: 23" Small Chest: 14" Waist: 14" Inseam: 23" Medium Chest: 15" Waist: 15" Inseam: 23" Medium support Four-way stretch 7/8 cropped length Perfect for cardio, spin, + medium-impact workouts Fabric : 80% Polyester, 20% Elastane Tags: Free People. Free People Movement. Movement. Free People Onesie. Back It Up. Blue. Fitted. Workout. FP Movement. Onesie. FP Movement By.