Quick Summary
This black ROCKJOCK men’s knitted beanie has an acrylic construction and a polar-fleece lining. It is described as having R40 thermal insulation and is listed for outdoor and winter activities. The stated size is One Size.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand and model | ROCKJOCK R40 thermal beanie. |
| Colour | Black. |
| Construction | Smooth knitted fabric with a polar-fleece lining. |
| Material | Acrylic. |
| Size and quantity | One Size; listed as one item. |
What to Compare Before Buying
- Fit: One Size is the only size detail given. Check any available fit guidance against the intended wearer.
- Weather protection: The listing describes thermal insulation but gives no temperature, water-resistance or wind-protection rating. Check for a relevant rating if you need protection for particular conditions.
- Material: The hat is made from acrylic and has a polar-fleece lining. Consider these materials if you have specific fabric preferences.
Who This Product May Suit
The listed uses include walking, hiking, camping, skiing and fishing, as well as other winter activities. These are stated uses, not a performance rating for particular weather or conditions.
Before You Decide
Check that the One Size fit is suitable for the intended wearer and that the materials meet your preferences. If you need protection against rain, wind or a particular temperature, check for a relevant rating before relying on the hat in those conditions.









