If you're like we are, there is a good chance that you've left your drop bags plenty of times. Freezer grade zip locks work pretty good, but sometimes you need a bigger option. So we had some made up custom that are 16" Wide x 20" Tall and made of a 5 Mil, LDPE, orange transparent plastic. Plus you have your name, bib, checkpoint, and event areas on the bag for easy fill in too. Features Your go-to drop bag for ultra-marathon and running events for easy access to your essentials at aid stations Plenty of space for keeping race ready and staying prepared for unforseen circumstances (the last thing you want is to run soggy and be stuck without a change of socks when storm clouds surprise you) Secure ziplock closure protects your gear from the elements Boxes to fill in your name, bib number, checkpoint and event LDPE transparent orange plastic makes it a breeze to identify your drop bag