T-Shirt, Nike Dri Fit, "NIKE BSBL" inside collar, navy blue base shirt. Red Sox on front with Nike and MLB logos. Small MLB logo on back at top near collar. Logo at waist hemline. Printing inside collar barely readable. Most likely 100% polyester. Measures what I would consider to be a Size L, Large. Sizing often varies between brands. Please note these actual measurements. Measuring laying flat: Armpit to armpit = 21.5 inches. Measuring down the center of the back, not counting the collar band = 26 inches. Pre-owned item in good condition, good decal/decoration, no holes, no tears, no stains.