Seamless Underlash Extensions Light as Air Undies Refills Go to all lengths with our longest Light as Air Seamless Underlash Extensions that elongate without weight while adding airy volume and dimension. The refill pack contains 32 knot-free, patented clusters for seamless blending. Build volume and length for subtle or standout vibe. 4 lengths let you customize to your eye shape from inner to outer corner: 12mm, 14mm, 16 mm, 18 mm. Light as Air: go long with these incredibly lightweight, full volume lashes in our longest lengths, with tapered tips Underlash application for a seamlessly undetectable finish No-show, superfine band Shapes lashes with a boost from below “Swear they’re mine!” real lash appeal Up to 5 applications Knot-free for seamless blending Super-soft, light Undies sit comfortably under real lashes Comfortable lash-on-lash application eliminates contact with skin 32 patented clusters in 4 lengths: 12 mm, 14 mm, 16 mm, 18 mm Apply in minutes, wear up to 10 days when you use Long-wear Seamless Bond and Seal by Duo (sold separately)