Hammerhead Sharks Wrap Around Drink Pocket girls backpack It is made from 3mm

It is made from 3mm Neoprene and  also has a loop on the outside to attach keys

All tumblers pictured are in the 20 - 40 ounce range

Made out of 3mm Neoprene

toddlers or adults who don't like the big backpacks

These patent pending Handlers™ are a little different than your average insulating sleeve

Hammerhead Sharks Wrap Around Drink Pocket girls backpack It is made from 3mmThese wrap around pocket Handlers have a 6x3. 75 pocket that velcro shut and will wrap around bottles and tumblers with a diameter of 3. 5 inches to 5 inches. All tumblers pictured are in the 30 50 ounce range. They also have a small loop to attach keys.