Brand new Free People Movement Every Single Time Runsie, size XS/S "So flattering and sporty, this sleek onesie features a wide waistband and scoop-neckline with a bold back cutout." Stretchy 87% polyamide 13% elastane fabric in blue Racerback with cut out back Double layer fabric throughout 12.5" across armpits, 12" across waist, 13" across hips, 3" leg inseam