Elastomeric™ technology, an exclusive development preventing excess pressure from building around the eye; this new offering provides a superior 'gushy' seal, unparalleled in other swimming goggles. Clear Sight™ Technology: Split-angled lenses offer 180° peripheral vision with zero distortion. All curved lens goggles inherently have some degree of distortion that cause eye fatigue, and prevent maximum visibility. Utilizing a split-angled lens, Speedo combines two flat lenses together, thereby eliminating the need to bend the lens, while offering the best sight possible.