Heavy Pads are 14" long and 7" wide (35x18cm). 2 layer 100% cotton flannel base topped with a central pad made with 1 layer of ultra-thin nylon and 2 layers of 100% cotton fleece, plus ric-rac bands to hold Liners for added absorbency. Sewn-on 3 snap plastic fastener. Suitable for very heavy or overnight menstrual flow or postpartum flow. Compatible with Long, Heavy Wing or Postpartum liners for added absorbency. Includes 1 Heavy Wing Liner.