Bolle Product #: 20863 * All Bolle goggles are engineered with the latest helmet designs in mind so the fit is smooth. * Bolle Equalizer technology uses a waterproof, breathable vent to eliminate any moisture. The result is distortion free vision and no fogging at any altitude. * Swinging outrigger to maintain perfect fit with helmets. * Ultra soft micro-fleece is the only material on your face, backed by two layers of multidensity foam for a firm soft fit.