I have been using this cap, on cool to cold weather days, for 8 years. It says Rain Cap, and it works great for that. Combined with a neck gator pulled up high, this cap gives plenty of warmth by blocking wind and rain. I have a 7 1/2+ head size and this cap stretches to fit, and if needed larger than that. I have been using the P1 for over a year now and the fabric is more generous and insulating than the previous two generations. This cap is a must have for me.
