Lego Ninjago Boys Juvy/Youth Green Ninja Sweatshirt Hoodie Lego Ninjago Boys JUVY Green Ninja Sweatshirt Hoodie Official Licensed - 60% Cotton & 40% Polyester Color: GREEN - BRAND NEW Shirt Specific Dimensions (inches) Size Width Length 4-(Small) 14" 18" 5/6-(Medium) 15" 19" 7-(Large) 16" 20" (MEDIUM 8) 19" 21" ( LARGE 10/12 ) 19" 22" Doubling the width measurement will give you the chest size.