Bugaboo has created three all-new irresistible Wool Accessories including the Bugaboo Wool Mattress Cover. The grey melange cover material is made of 100% extra fine merino wool and offers true comfort for babies. As a natural material, wool regulates temperature which means parents can keep their children well protected and comfortable all year round. The one-size-fits-all mattress cover can be used in the carry cot of the Bugaboo Cameleon, Bugaboo Cameleon³, Bugaboo Frog, Bugaboo Gecko, Bugaboo Donkey, and the Bugaboo Buffalo. Machine washable.