






🧢 Stay warm, stay protected — the beanie that works as hard as you do!
The Ergodyne N-Ferno 6811ZI Rib Knit Hat combines premium thermal comfort with integrated bump cap protection, featuring a zippered compartment for universal inserts. Crafted from 100% soft dry acrylic and insulated with 40g 3M flex stretch, it offers breathable impact resistance ideal for low-clearance workspaces. Machine washable and designed for one-size-fits-most, this patented beanie is the ultimate blend of safety and style for professionals on the move.









| Manufacturer | Ergodyne |
| Part Number | 16811 |
| Item Weight | 7.2 ounces |
| Product Dimensions | 12.5 x 5 x 14 inches |
| Item model number | 6811ZI |
| Size | One Size |
| Color | Black |
| Style | Rib Knit Hat Bump Cap Insert |
| Material | Polyester |
| Pattern | Solid |
| Thickness | 1 Inches |
| Item Package Quantity | 1 |
| Special Features | Lightweight |
| Included Components | 1-6811Z Winter Hat & 1-8945 Bump Cap Insert |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | We stand behind everything we make and guarantee our products to be free of defects in materials and workmanship to the original purchaser for the lifetime of the product. That said, damage, abuse, and/or normal wear are not covered. |
A**R
Excellent hat
Excellent product. Bought this for my cousin with a brain injury. He loves it because you can’t even notice it has a protective layer inside. Definitely worth the money. Fits great. Light weight and breathable.
J**S
Great product, great price
This thing is a lifesaver. Very warm. Not so tight as to be uncomfortable but also not so loose that it'll fall off. If I leave it on with glasses for too long, it can get a little uncomfortable. Otherwise it's perfect. And the insert can come out to be used with some reasonable caps/hats if it's too warm for this cap.
H**O
Protects the top of your head and keeps you warm at the same time
I had a head injury from a few years ago. Even though my head is OK now, I like to play it safe and protect it a little more than usual. I work in automotive and there are certain times of the year where it gets cold down here. A regular cap isn't good enough for the cold and even though a regular beany keeps my head warm, it doesn't provide me any head protection under hood. This is the best of both worlds. It keeps my head warm and adds a layer of protection to the top of my head. It does look a little bulkier than a regular beany but honestly, you can't tell the difference. My only complaint is that you do have to readjust the plastic cap once in awhile because it can move a bit. I definitely recommend it though.
T**D
Good hat
No more bump cap sitting on my bare hair and scalp during the winter months! Good construction and materials.
J**R
Comfort
Provides a lot of protection and is very comfortable
K**R
Wasn't for me, but could be useful
Wasn't for me. I could see it being very useful for other people, but it was quite bulky for me.
V**E
perfect fit
fits good
L**R
Not a quality product
After just a couple of washings, the cap has NO form to it, and is stretched out of shape!
Trustpilot
2 months ago
1 day ago