Bodyform Invisible Ultra sanitary towels contain a layer of super absorbent material called efficapt. Made of compressed cellulose, a natural and renewable forestry product, efficapt has incredible absorption properties for security during your period. The efficapt core also has an unsurpassed ability to spread fluid over the entire super absorbent surface to prevent it from collecting in one place. This allows Bodyform sanitary towels to utilise every tiny fibre to keep you fresh and dry even on the heavier days of your period. Bodyforms SecureFit Technology makes the sanitary towel fit your body perfectly, because it has a front and back, just like you. The Bodyform sanitary towel therefore follows your body movements and so that you feel secure at all the time and whatever you do for the duration of your period.