Overview: You can use it for biking. Its dirt cheap compared to other masks available. The mask itself is only neoprene in the front of the mask. Which is good, since neoprene isn't that good at transporting moisture. The rest is fleece. It also covers your ears, so if you have a helmetcloth, your face will almost all be incapsolated. Nice! I've got a medium-large head, & have no problem wrapping this around Specification: Weight Approx:58.3g Size Approx:57 x 23 x 0.5