Pip+Phee Bamboo 2-Piece Pyjama Set - Black and Grey Checkered Veer Cruiser City XL Accessory most likely they have been

most likely they have been covered with a chalkboard paint-like material by the manufacturer

machine washable fabric

Stretchy Sides:87% polyester 13% spandex

Assembled Width: 31

Certified by Ecocert

Pip+Phee Bamboo 2-Piece Pyjama Set - Black and Grey Checkered Veer Cruiser City XL Accessory most likely they have beenPip+Phee's 2 piece bamboo sets are designed with the details in mind. Made from an all natural viscose bamboo blend, this fabric will keep your little toddler cool yet cozy at the same time yep, its temperature regulating! The silky smooth fabric is soft, breathable and comfortable, making it the perfect choice for the most sensitive skin. Features: Super stretchy neck holes to easily pop over heads without a battle Elastic waistband is sewn to the