Personalized I Love My Yiayia Very Much Retro Groovy T-Shirt. Made for Greek families and anyone who loves their grandma, this product is a heartfelt tribute to the love and care that yiayias provide. Whether you call her yiayia, yaya, nonna, or gigi, this design is a beautiful way to show your appreciation. Get one for yourself or gift it to your beloved yiayia and let her know just how much you love her. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.