Cross-body bag.

Features: It's typically waterproof or water-repellent, designed with anti-theft features like hidden zippers or slash-proof materials, and often includes multiple pockets for organization. 

Versatility: This type of bag can be used for various occasions, including casual outings, travel, and even as a compact alternative to a laptop bag for smaller devices. 

Functionality: It can be worn as a shoulder bag, sling bag, or chest bag, providing a secure way to carry essentials like phones, wallets, and other personal items.