Quick Summary
The Viosmut thermal cycling skull cap is a black, one-size helmet liner with an extended ear-covering design. It has a double-layer fleece lining, openings for glasses arms and earphones, and reflective logos on the sides and back. The stated head circumference range is 52 to 62 cm.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Type and quantity | One cycling skull cap, intended to be worn under a helmet. |
| Size | One size for a stated head circumference of 52 to 62 cm. Check your measurement against this range. |
| Construction | Double-layer fleece lining; the outer layer is described as nylon-spandex with a waterproof coating. |
| Coverage and openings | Extended ear cover, with openings on both sides for glasses arms and earphones. |
| Visibility details | Reflective logos are described on both sides and at the back. Their presence does not establish a visibility rating. |
| Colour | Black. |
What to Compare Before Buying
- Head measurement: Check that your head circumference falls within the stated 52 to 62 cm range; one size does not mean it will fit every head.
- Helmet fit: Check that the liner sits beneath your particular helmet without interfering with its fit or adjustment. The broad compatibility claim does not identify specific helmet models.
- Weather protection: The outer fabric is described as having a waterproof coating, but no waterproof rating or test details are given. Consider the level of rain protection you need rather than treating the coating as a guaranteed performance rating.
- Glasses and earphones: The side openings are intended to let glasses arms and earphones pass through. Check their position against your glasses and helmet.
Compatibility, Size and Fit
This liner is intended for use beneath a helmet, with extended coverage over the ears. Fit depends on your head measurement and the space available under your helmet. Check the combination while stationary and confirm the helmet still fits and adjusts as intended before riding.
Before You Decide
Check your head circumference, the available space beneath your helmet and whether the side openings align with your glasses. Treat the reflective logos and coated outer fabric as described features, not as a substitute for checking the visibility or weather protection you require.
