Ortlieb Dry-Bag PS10 Valve

The valve allows you to squeeze excess air out of the bag after you have sealed it. By compressing the bag, you can significantly reduce its bulk, making it much easier to fit into tight spaces inside your main pack or pannier.

The PS10 is designed to be highly water-resistant and dust-proof. As long as you roll the top closure at least 5-6 times, it will keep your gear dry in wet conditions, though it is not intended for full submersion.

The circular base gives the bag a structured, upright shape, which makes packing it much more efficient. It also adds a layer of durability to the area that typically sees the most wear and tear when you set your bag down.

While the PS10 is built from durable PS21 fabric, it is primarily designed as an internal liner or organizer. It works best when placed inside a larger backpack or pannier to keep your gear sorted and compressed, rather than as a standalone external bag.

The color-coding is a simple, effective way to organize your gear. By assigning specific colors to different categories—like blue for clothes and red for electronics—you can quickly identify exactly what you need without digging through your entire pack.