The ultimate in tear-off technology, the laminated Supertech Racing Perimeter Seal Tear-Offs are an industry leader. Two stacks of seven tear-offs make up the 14 pack and looking through one, seven stack of laminates is like looking through one normal tear off - the clarity is amazing. The Perimeter seal tear-offs have a bead of adhesive that sticks to the lens preventing moisture and sand from getting between the two. After using laminates you won't want to use any other tear-offs.