Don't cross a glacier or ski over a powder field on a bluebird day without blocking snow glare from all angles. With their magnetic side shields, the Julbo Bivouak Sunglasses go above and beyond to protect your peepers from eye damaging light reflection. The wide Spectron 4 lenses offer essential coverage whether you're alpine climbing or fly fishing. For everyday use, the side panels easily detach from these otherwise glacier glasses. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer andor birth defects or other reproductive harm.