Review on RockBros Thermal Cycling Moisture Motorcycle Outdoor Recreation by Balakrishna Monzon

I assume it can be used under a full face motorcycle helmet in temperatures below 55 degrees. I have and use a thinner [non-thermal] cap of this shape for temperatures above 55. This is a quality cap with fine stitching. It's quite soft on the inside and covers the ears well. I give this product 5 stars even though it is too small for my head. I'm going to put it on some sort of "head shaped thing" and try to stretch it out a bit. I wish this item was available in a larger size. I have a slightly larger than average head size.