2 T-shirts will be sent, one for the father and the other for the son. YOU NEED TO PROVIDE THE FATHER'S SIZE AND THE CHILD'S AGE FROM THE ASK THE SELLER SECTION. SIZES ARE STANDARD AND CHILDREN'S T-SHIRTS START FROM 3-4 AGE. QUALITY DOMESTIC PRODUCTION COTTON BLACK T-SHIRT IS USED; T-Shirt Sizes and Measurements for FATHER are as follows WIDTH 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 T-Shirt Sizes and Measurements for Boys are as follows SIZE WIDTH LENGTH AGE 132 cm45 cm3-52 36 cm50 cm6-83 40 cm55 cm9-11 XS 44 cm60 cm12-15 T-Shirt FEATURES FOR FATHER AND SON * Suitable for Hot Pressing 100% Cotton Soft Quality Fabric