Its a Mueller thing

Finally, a hooded sweatshirt with a built-in neoprene pocket for beverages! This unique patented design from Huzu and J. America maintains the sleek look of a traditional hoodie, but packs more functionality than a Swiss Army knife. The insulated pocket has reinforced stitching that keeps your beverage sturdy whether you're playing corn hole or flipping burgers. Unlike traditional hoodies, the Huzu Velcro seal is great for storing cell phones, wallets, and other valuables that you need to keep secure and prevent from bouncing around or falling out. Also great for holding fly boxes for fishing, small backpacking and hunting equipment, diabetic meters and more.

• 9.0 oz, 60/40 cotton/polyester blend
• Officially licensed by Huzu, the patent holding creator
• Stitched-in neoprene beverage holder inside front kangaroo pouch pocket. Holds a 12 oz bottle or can.
• Velcro seal above neoprene opening makes storing cell phones, wallets, and other valuables discreet and secure. Not good for coins or other loose money.
• Metal bottle/can opener in front pouch pocket is attached to a elastic cord via a split metal key ring. Hangs about 12 inches down from the top of pocket. Bottle opener is removable for washing and drying hoodie; cord's sewn in.
• Beverage not included

Care Instructions:

• It's suggested to remove the metal opener before washing and drying the hoodie

Sizing and Material Notes:

• All measurements are provided by garment vendor; vendor tolerance for all measurements is +/-10%
• All provided measurements are in inches
• Body Width is measured 1" below the arm holes

Sizing Tip:

• To get an accurate size, your best bet is to find a like item you own and love at home, lay it flat, measure it in inches then match those measurements to the manufacturer's recommended Size Chart.
• Need help to find the right size? See this video.