The SOL stands for Survive Outdoors Longer. I've got a couple of their products in the store but none of us has used them. I'd like to hear from anyone who has experience with them what you think. I'd like to buy one of their combo kits (link below) but their kinda pricey. http://www.surviveoutdoorslonger.com/origin.php I know I can make a comparable kit for alot less but I'd still like to know about the brand and quality.