When every ounce matters on the trail, the Outdoor Research Swift Cap delivers maximum sun protection with minimal weight penalty. At just 2.5 oz, this ultralight trail running and hiking cap won't weigh down your pack or your pace, making it a favorite among thru-hikers and ounce-counting backpackers who refuse to compromise on comfort. The UPF 40 protection and shaped brim shield your face from harsh sun during long days on exposed ridgelines, while the moisture-wicking TransAction headband keeps sweat out of your eyes when you're pushing hard uphill. Its low-profile design means it fits perfectly under climbing helmets for alpine adventures, and the quick-release buckle lets you dial in the perfect fit without breaking stride. Whether you're grinding out miles on the Pacific Crest Trail or scrambling up sun-baked peaks, this technical cap keeps you covered when the sun is blazing and every gram in your pack counts. Features Low-profile design fits comfortably under helmets Moisture-wicking headband keeps sweat away from face and eyes Shaped brim provides comprehensive sun protection Dark fabric under brim reduces glare for improved visibility Quick-release back buckle allows on-the-fly adjustments Mesh ventilation panels enhance breathability Water-resistant and quick-drying construction Sustainably made with recycled materials Specification Value Weight 71g (2.5 oz) Sun Protection UPF 40 Materials Primary Fabric: bluesign® approved recycled nylon blend | Headband: TransAction™ moisture-wicking material | Ventilation: Mesh panels
