Recommended uses: skiing, diving, the gym, and other activities.

The D-ring at the top allows you to attach a steel cable lock to prevent theft.

The sides have mesh pockets for storing drinks.

The shoulder straps have D-rings for hanging small items with carabiners.

The external pockets have waterproof zippers for storing small items.

(Please note that this product is not completely waterproof, so do not intentionally submerge it in water.)