BBob
WKR
Sea to Summit collapsible cup. The cup fits inside my jetboil micro mo or Sterno inferno pot on top of the fuel canister. They make a slightly larger hot mug and an even larger plain mug. The cup is 8oz and the others are something like 12oz and 16oz. I have used the squishy cups and a snow peak Sierra cup but currently using the STS because it’s more compact.