Boston Celtics Concepts Sports Duo Women's Pajama Set. The team color Celtics t-shirt is made with a 60% Cotton/40% Polyester Jersey knit blend making it comfortable to wear all day long. The pants are 100% Cotton Flannel featuring a plaid team color design with the Celtics logo embroidered on the left leg. The shirt features the team name and logo screenprinted on the center chest with secondary color stitching on sleeves, collar and hem. Excellent gift for that true Boston fan in your life! Go Celtics!! Officially licensed Boston Celtics fan gear.