Product features
- Thermoflex is warm, soft and stretchy
- Flat-lock stitching
- Contoured to cover ears
- Raw-cut edge lies flat and doesn't bunch under helmet
- Reflective detailing on back
- Thermoflex is warm, soft and stretchy
- Flat-lock stitching
- Contoured to cover ears
- Raw-cut edge lies flat and doesn't bunch under helmet
- Reflective detailing on back
- Weight:33 g
Garment supplied to the Soudal Quick-Step Team riders.
Here is what our customers think about it
1 reviews
Superb, thin, surprising effective
08/11/2023
Another piece of surprisingly effective kit from Castelli. It is super thin and fits under a race helmet without much adjustment. Nice soft comfortable material and warm for me down to 4/5 degrees and not too warm up to 14/15 degrees for me. My son uses one down to zero degrees and is immensely happy with it even down to such low temperatures. For me when it gets that cold I use the Estremo skully but anything above 4/5 degrees and this is my go to under helmet hat.
Superb, thin, surprising effective
08/11/2023
Another piece of surprisingly effective kit from Castelli. It is super thin and fits under a race helmet without much adjustment. Nice soft comfortable material and warm for me down to 4/5 degrees and not too warm up to 14/15 degrees for me. My son uses one down to zero degrees and is immensely happy with it even down to such low temperatures. For me when it gets that cold I use the Estremo skully but anything above 4/5 degrees and this is my go to under helmet hat.