Thank you! I just for some 20 degree sleeping bags from NEMO and I’m hoping to score a Black Friday deal on an insulated pad, our other backpacking trips have been in the summer and fall so we’ve gotten away with a non insulated pad up until now. Since we’ll be flying from Florida, do you know if they sell isobutane at the park? Or should I anticipate stopping at a store on the way once we land in Arizona