Clear lens, transparent. The Seal XP is a hybrid goggle that combines the superior visibility and exceptional comfort of the Seal Mask with the low profile and hydrodynamics of the Kaiman Goggles. The low profile, wrap-around design of the Seal XP creates less drag, has greater hydrodynamics and is ideal for fitness swimming or swim training. The Clear lenses are designed to provide great visibility when swimming indoors and in low light level situations such as indoor swiming pools.