Rock On with Our Funny Guitar T-Shirt: 'I'm Not Old, I'm a Classic & Retro Guitarist Dad/Grandad' Showcase your timeless style with our 'I'm Not Old, I'm a Classic & Retro Guitarist Dad/Grandad' Funny Guitar T-Shirt Perfect for guitar enthusiasts of all ages, this tee celebrates the timeless allure of music and ageless coolness. Our T Shirts are a standard fit unisex style 140gsm semi-combed ring spun cotton, suitable for both men and women. 140gsm semi-combed ring spun cotton All our shirts are 100% cotton with the exception of our SILVER MELANGE which is 90% cotton and 10% polyester. All our T Shirts are machine washable - we recommend washing inside out at 30 Degrees centigrade and not ironing directly onto the print. SIZE GUIDE To Fit Chest (inches) Small 36-38" Medium 40" Large 42" X-Large 44" XX-Large 46-48" 3XL 50-52" 4XL 54-56" 5XL 58-60" 6XL 62-64"