Theta Phi Alpha Blue & Pink Flannel Pajama Pants. Lightweight flannel. Greek lounge pants are exactly what you want to wear after a long workout or on a lazy afternoon. Greek clothing that is comfortable and stylish all in one. Features four inch Greek Letters down the leg with commercial grade twill letters that will look beautiful now and a year from now. Optional Coordinating Tops Are Available. Simple Select Your T-Shirt Size And Add As Many Shirts As You Want.