Reinforced Four Wall Protection ® for leak protection side-to-side & front-to-back. Cottony Dry Cover for dryness. Secure Center to reduce bunching & twisting. Anti-Leak Core to lock in fluid. Individually packaged in #4 size box, for use in most feminine hygiene vending machines. Now today's woman can expect to find the same high Stayfree ® quality she always has relied on away from home. Absorbency: Maxi.