FIT & DESIGN: The shirt is an ultra-comfortable 4.3 oz 60% Rung-Spun Cotton 40% poly blend tee. The model is 5'8" and 135 pounds wearing an Adult Medium. Our Don't Kill My Vibe Tee is printed on a comfortable athletic fit tee. ADDITIONAL DETAILS: The YOUTH tee's run small, please confirm with our size guide before ordering. For best care, wash tee inside out in cold and let air dry