From the brand

Adjustable Carrying Options: The Aviator-T33 1.5L Chest Bag can seamlessly convert into a versatile Sling Bag, making it an ideal companion for travel, everyday use, or any on-the-go activity. Its adaptability ensures you’re always ready for any situation
Efficient On-the-Go Partner: Efficiently organizes and secures smaller essentials, perfect for short outings or daily activities. Easily store your mobile phone, credit cards, and cash for quick access
Advanced Security Features: Features RFID protection to guard against unauthorized scanning and potential fraud, while the water-resistant Nylon fabric keeps your belongings dry and safe even on rainy days
Comfortable and Lightweight: Designed to be lightweight and easy to carry, the bag offers a comfortable fit on your shoulder. Its lightweight construction makes it suitable for all-day wear
Product Details: Bag dimensions: 8.27″ x 4.53″ x 2.56″. Volume: 1.5L. Weight: 0.48 lb. Strap wearing length (bag’s width included): 39.77″-63.39″. This sling bag is also a great idea as a special gift/present for men for his birthday; New Year; Valentine’s Day; Easter; Father’s Day; Halloween; Thanksgiving and Christmas