Review on MIER Waterproof Dry Duffel Bag: Airtight TPU Dry Bag for Outdoor Adventures - Motorcycle, Kayaking, Rafting, Skiing, Travel, Hiking, Camping by Chris Hernandez

The bag is amazing. I was looking for a waterproof bag for a multi-day motorcycle trip and I'm glad I chose this one. I packed everything up and tied it to the back of my BMW F700GS. The bag has great attachment points - I just threaded two elastic cords through the small grommets on the bag and it held up great. I covered it with a rubber band. Cargo net, but to be honest it was overkill. The bag is really airtight - after closing it I had to unzip it a bit to let the air out of the bag and it popped out like a balloon. I actually started leaving some air in it and it served as a nice backboard for my backriding girl. On the first day we were caught in a violent thunderstorm on a highway in Kentucky and caught the rain by surprise. I wasn't in a place to start, so I was doused in torrential rain for several miles at highway speed. Everything in the bag was completely dry. There was never a problem of water getting into the bag while driving. I think over time and with heavy use there is a chance the seals will break and the bag will not be 100% sealed, however a tube of seal repair paste is included. Saved a lot of money instead of a hard case for motorcycle luggage. I've also looked at Patagonia Black Hole and the like but none of them claim to be 100% waterproof. I will not hesitate to buy again.