Big Feet PJs red and black plaid (tartan) unisex onesie pajamas are a true classic! For both man & woman. They are made of 100% cotton flannel and are double-brushed for added softness and comfort. These pajamas button up the front and have non-slip soles.Drop-seat option. These unisex pajamas are the centerpiece of lullaby-chic line of footed nightwear. These comfortable red and black plaid pajamas are made from only the softest, double-brushed cotton for extra comfort.