The thermoball hoodie from the north face marks the latest release of their hotly anticipated line of technical clothing named after the eponymous insulation developed in collaboration with primaloft the innovative insulation retains warmth even when wet and is so compressing it can be packed down to fit into its own pocket collectively the thermoball hoodie is an exciting evolution in the midlayer categoryactivitymountaineering snowsportscolour swatchnavyfasteningzipfill typesyntheticg