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Upper Body Structural Insulator 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). $28.99 convert currency Size:  Size Chart Small Medium Large X-Large 2X-Large (+$3.00) Color: White Ash Grey Qty:    AVAILABILITY: Product Number: 36809139 Tell a friend about this product! Product Information Fit: Standard Not too tight, not too loose. Fabric Thickness: Warm up in our stylin' Hanes Heavyweight 90/10 cotton/polyester sweatshirt. Thick (but not bulky), for maximum comfort and durability whether you're working out or hanging out. 10.1 oz. patented PrintPro® fabric in a 90/10 cotton/polyester blend Standard fit Spandex trim in cuffs and waistband