Our Super Soft Niter Niter Romper Grows With Baby During And After The Swaddling Stage. It Is 100% Soft Breathable Cotton And Swaddles To Waistline For A Hip Healthy Natural Leg Position. The Infant Romper Also Has A 2-Way Zip For Easy Changing, A Chin Guard And Safe Open/Close Click Able Poppers. 2.5 Tog.