Our son was going "up north" on a camping trip to celebrate his birthday. I called LLB at 9 p.m. on a Tuesday evening, ordered 3 assorted bags. They were delivered Thursday morning. Best camping bags he'd ever used! Great birthday gift, and will be used on many more trips.
Purchased the 4 liter for a recent sailing trip. Perfect size for taking your phone, pocket camera, cash, keys, etc. ashore. Will even hold a small pack towel. And the clip doubles as a handle for carrying. Didn't test it by "dunking" the bag but I believe it would have kept my gear dry.
Purchased sack to protect camera and cell phones during an Alaskan fly fishing excursion, Jun 28 thru July12th. Objects will fit, and I hope I do not have to report how well it keeps them dry...I will also use sack on regular kayak trips here in South Carolina. Future report after use.