REV'IT! Balaclava Maximus WSP To complement our existing range of balaclavas that feature WINDSTOPPER® functionality, we introduce the Maximus WSP balaclava, which incorporates an extra-large water repellent WINDSTOPPER® chest panel with a moisture-managing upper face mask. We've also built in open-knit panels near the ears and mouth to facilitate easy breathing and hearing, making this the most comfortable and technically superior high-end balaclava on the market today.