What Our Gearhead(R) Experts Are Saying:"This cap is seriously light and warm! It's perfect for keeping my head toasty on cold hikes or climbs, and it packs down to practically nothing. A must-have for ultralight adventures."When ounces matter and the cold sets in, the Mountain Hardwear Ghost Whisperer Cap keeps us warm without weighing us down. This ultralight cap features responsibly sourced down insulation that traps heat while maintaining an incredible packable profile. Whether we're on an alpine ascent, a brisk trail run, or setting up camp after a long day, this cap offers the warmth and protection we need with barely-there weight. The sleek design fits easily under helmets and hoods, making it a versatile companion for climbing, hiking, or backcountry skiing. When the chill subsides, it compresses down small enough to disappear into a pocket or pack. Minimal weight, maximum warmth-this cap is always ready for our next adventure.