Speedo Biofuse FitFin 99. From lessons to squad sessions, our popular Junior Hyper Flyer Mirror goggle has your child covered. Suitable for young swimmers at every level, its low-profile, flexible unibody design is comfortable and secure, while the mirrored anti-glare curved lenses ensure maximum visibility. Designed with a Speed Fit Clip for quick and easy adjustment. Low profile, flexible, unibody design for a comfortable and secure fit Curved lens technology offers maximum visibility Mirrored coating reduces glare Speed fit clip for easy and quick adjustability