"What Our Gearhead® Experts Are Saying: ""I use the Vigor Grid Fleece Beanie anytime I’m moving fast in cold weather. The ActiveTemp tech really does keep me from overheating, and the grid fleece breathes way better than a standard knit hat. It fits cleanly under a helmet and the ponytail port is a smart touch—super functional without adding bulk."" We lean on the Outdoor Research Vigor Grid Fleece Beanie when our cold-weather missions demand warmth that can keep up. Built with breathable grid fleece and powered by ActiveTemp thermo-regulating technology, it adapts to our exertion level—staying warm on rest breaks and helping us stay cool and dry when we push hard. The lightweight, stretchy design layers flawlessly under a ski or bike helmet, while the concealed ponytail port adds practical comfort without compromising coverage. Whether we’re climbing above treeline, pedaling through frosty mornings, or hiking fast on crisp fall trails, this performance beanie delivers the balance of warmth and breathability we need for active adventure."