Buckle closure [Using new comfortable fabrics] Increase the breathability and comfort of the product, make it smoother and softer, and not easy to fluff [Test understanding] After testing, we learned that metal buckles are prone to rust when exposed to water and have a short service life. Rusty metal in contact with the skin for a long time can cause dermatitis and eczema, so we use a safer and more durable structural rubber buckle 【ABDL Onesie 】If you have any problems, please contact us. We are online for 25 hours and will solve it for you as soon as possible. Vibrantly colored prints similar to those found on real baby onesies have been enlarged to provide the same level of cuteness to adults. 95% polyester 5% spandex is soft on skin and stretches to fit many body types.three crotch snaps for easy dressing and a secure fit.