Kiefer Raptor Junior Swim Goggles are the ideal choice for junior swimmers. They feature a comfortable hypoallergenic silicone frame and anti-fog lenses. The split head strap has a rear clip adjustment for that perfect fit. They are made specifically for youth faces and beginner swimmers. Blue. Kiefer – The First Name in U.S. Swimming since 1947. Kiefer Raptor Junior swim goggles feature a comfortable hypoallergenic silicone frame, anti-fog lens and a split head strap with rear clip adjustment. They are made specifically for youth faces and beginning or junior swimmers.