The entry level version of the flip-up visor popular with World Cup Biathletes. Won't fog, easy flip up/down for quicker range times, and Carbonic lense is light and durable. A spare clear Carbonic lense is also included. 100% UV protection. Medium fits most faces. Large for greater 'windshield area'. The Medium and Large frames are identical, only the lense is bigger on the large.Overall weight is only 50 grams.