The X1S goggle by Dragon has some great functional features.The armored venting makes clearing snow packed vents a snap. With improved attachment points for secure fit, this system is ready for any conditions. With the silicone strap backing you'll get more integrated feel, increased secure fit, and improved ease of use. The triple foam with hypoallergenic micro fleece lining provides soft hypoallergenic moisture wicking contact with your face. Its stylish frameless technology makes you want to wear these glasses all day long.