Alexander Del Rossa Men's Warm Flannel Button Down Pajamas, Long Cotton Pj Set, Medium Red Green and Blue Christmas Plaid (A0473Q19MD) at Amazon Men's Clothing store
Unisex Flannel Pajamas in Red and Black Buffalo Check With T-shirt Option Fits American Girl, Our Generation and Other 18 Inch Dolls. - Etsy
NWT: Men's Old Navy Plaid Flannel Pajama Pants, Red/Black, Size XL | eBay