Vinstrip's Backpack Cross Body Bottle Bag is an adjustable bottle carrier that can be worn in 4 different ways! - As a Backpack - Cross Body Bag - Over the Shoulder in size long and short - Carry by Hand The strap is adjustable in length so this product is suitable for kids. To change the size, open the strap and scroll down to the next button. To change the way to wear it, simply slide the bottom strap and adjust it as a backpack or crossbody. It is very cool and practical, this product store flat. Weight capacity 1.5 kg, adaptable to carry any drink bottles and wine bottles. The strap length will extend over time, making this bag more comfortable to wear. Suitable for any size bottles, wine bottles, Swell Bottle, Earth bottles, Cheeki bottles, Oasis Bottle, Frank Green bottles, and many others (for Yeti 26oz bottles we recommend our Large ring Bottle bag).