Carefree Acti-Fresh liners are designed to deliver the ultimate freshness throughout your day. The ultimate freshness is due to a new core that's 40% thinner and proven to absorb 2x more than before. New Carefree Acti-Fresh liners have an 8-hour odor control system so all you feel is freshness. *Compared to previous Carefree Body Shape Regular How it Works: Carefree Acti-Fresh liners are super absorbent to lock fluid away. Our unique process results in a thinner, more absorbent liner that feels as soft as your panties. The fibers in Carefree Acti-Fresh liners' cover are bonded together like fabric to give you a soft, cotton-like feel that moves with you.