You need to send the mother's size and child's age from the "Ask a Question" section to the seller. A total of 2 t-shirts will be sent, one for the mother and the other for the daughter/son. Sizes are standard and children's t-shirts start from the ages of 4-5. 1st quality domestic production 100% cotton. Soft, soft black t-shirts are used; The t-shirts are unisex and you can use them as you wish, such as father and son, mother and daughter, father and daughter. ; T-shirt sizes and measurements for mothers are as follows in width x length; Xs 44 cm x 60 cm ; S 48 cm x 65 cm ; M 51 cm x 69 cm ; L 54 cm x 73 cm ; Xl 57 cm x 76 cm ; Xxl 60 cm x 80 cm ; For children's t-shirt size selection, just send your age ; Features of t-shirts for mother and daughter * It is 100% cotton soft, high-quality fabric suitable for hot printing ;