Rating: 5 / 5
Bought this hat some time ago and its a great piece of gear. Evan at Black Rock has been great to interact with. Responsive to answer questions. Everything you'd want from a vendor.
The hat is unbelievably warm. With the down insulation it is warmer than wool or fleece stocking caps i've used in the past, at a lower weight.
I've worn it down to the high 20's F and have been plenty comfortable. I've worn it while snowing and it has shed snow well and handled light moisture just fine. Used for both sitting around camp, some hiking, and for sleeping.
Quality of construction is outstanding. Looks great. Fit and comfort is really good. I've had it for over a year and it has held up perfectly. No down leakage or obvious wear and tear. The product delivered is as described by the manufacturer. Bought my dad one, and he raves about it too.
I think the only downside is that depending on what other gear you have on, you may get too hot, as it quickly warms you up. And if you are a bit anti social , you may,tire of answering questions from people about your really cool hat.