This is a security pouch with a carabiner from River Flyer. I used it once for a long overseas trip. There is some pilling and signs of use, but I think it can be used without any problems functionally. ↓ From the official website ↓ "Smartly protects valuables × Slim anti-theft design" "Secure Pouch®" 【Functions to safely protect valuables】: (1) Skimming prevention function (※ Applied to the front and main pockets) (2) Water-repellent Lycra material (3) High-quality YKK zipper is used, and you can feel its safe and comfortable functionality every time you use it. 【Equipped with a unique double-layered pocket & 3 pockets】: With a compact appearance, it has a front pocket, and when you open it, there is another main pocket (with a card organizing pocket), and a back mesh hidden pocket, for a total of 3 pockets. The layout was carefully considered by a staff team with extensive travel experience. It's easy to separate items and easy to take out what you need. 【Comfortable fit for long hours of wear】: It uses a soft "High Fit elastic belt" that provides a high level of fit and puts less strain on the waist. It is also characterized by its resistance to slipping during wear and its ability to freely adjust the size.