Watch out for this winged creature in your house! This one piece hooded pajama for men is designed to look like a vampire bat, complete with winged sleeves! These pajamas are 100% polyester fleece. Medium fits height of 5'3" to 5'7", 125-150 lbs; Large fits height of 5'7" to 5'11", 150-175 lbs; XL fits height of 5'11" to 6'2", 175-220 lbs; 2X fits height of 5'11" to 6'3", 200-300 lbs.