We're talking a 1:1 ratio of one extension applied to one natural lash. This means we can only apply as many extensions as you have natural lashes. An extension cannot be placed where there isn't a natural lash! So, if you have sparse lashes and wish to fill out your lash line, classic eyelash extensions won't be the most suitable fit for you. You'll want to read on about Hybrid and Volume. So what if you want a little more coverage, but aren't ready for full Volume? The answer is Hybrid eyelash extensions. This is a blending of both the Classic and Volume eyelash extension techniques. Volume fans and Classic eyelash extensions are intermixed to create a fuller lash line. Volume eyelash extensions. This is a more technical technique where the technician takes 2-10 very thin eyelash extensions and makes them into a fan shape before applying to the natural eyelash. What happens when you when you apply these fans next to each other? You get a dense, fluffy set of lashes. with a dark lash line. ​