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Upper Body Structural Insulator Kids Sweatshirt Upper Body Structural Insulator: That's right, it's more than just a shirt, it's a complex piece of personal clothing technology. (Admit it, you can't get any geekier). $19.99 convert currency Size:  Size Chart S (6-8) M (10-12) L (14-16) Qty:    AVAILABILITY: Product Number: 36809134 Tell a friend about this product! Product Information Fit: Standard Not too tight, not too loose. Fabric Thickness: Warm up while lookin' casual-cool in this kid version of this adult favorite - our ash grey Hanes Heavyweight 50/50 cotton/polyester sweatshirt. Thick (but not bulky), roomy comfort for easy layering underneath. Great durability for playing hard or hanging out. 7.8 oz 50/50 cotton/polyester fleece Standard fit Ribbed waistband and cuffs