Bamboo Jersey Cotton Chemotherapy Headwear.BAMBOO is 100% biodegradable and  is the fastest growing plant in the world. Bamboo material is soft  with all of the benefits of breathability, both warmth & coolness depending on the weather. Offers UV protection and  has anti-fungal properties it is the perfect material for a head cover ensuring that it does not irritate the skin or damage the scalp. It delivers a non-slippery, lightweight and is fully breathable material.