Proof is Huckberry’s in-house label, and its new midlayer is the GridFleece Half-Zip. It is cut from Coolcore recycled-polyester grid fleece. The grid faces outward and traps warm air and moves sweat through the geometry of the fibre and there is no chemical finish on it. A fleece half-zip is what a person wears when they want to look like they spent the morning outside, and sometimes they did. The half-zip front vents. There are gussets under the arms for mobility and a zippered pocket centred on the chest. It arrives with the fall lineup this week.