The C-360 Hub Shelter by Clam packs down small for the anglers on the move. And a thermal skin keeps heat in, reduces propane use, and reduces condensation. Combine this with advanced hub technology, and you have a superior pop-up portable ice shelter— the C-360 Thermal Hub. It also has the head and fishing room comparable to our competitor's models. The C-360 Thermal Hub the perfect ice fishing shelter for anglers and their families looking to stay warm and comfortable this winter!