This bag was originally designed to hold a military portable Satellite Communications Antenna. We quickly discovered that these make great day packs for day trips and bike rides. You will be surprised how much gear you will be able to fit inside it.
Yoga Mat Bag too..
When not carrying stuff back and forth to our camper, this remains in the camper. It's great to hold our LARGE thermos. We just place it behind the passenger seat and loop the strap around the headrest. It helps to add insulation to keep the coffee really hot. The dual zipper pull opens it wide so "in and out" for a cup is quick and easy. There was really no place for our thermos in the truck where it would not roll around. Not the original use, but for us - it's simply perfect. Not cheap, but extraordinarily well made, will last for generations.