Expedition Fuel Bottle Cap

If you've ever carried a steaming mug of tea through the house, you know that every dog toy, sock, or book on the floor suddenly becomes a technical challenge. Now, after being silly enough to lose the cap, imagine trying to carry your open fuel bottle over all of the rocks and roots on the trail—or do what we did and just get the MSR Expedition Fuel Bottle Cap, and seal that sucker up.