The phrase "cotton soakers" refers to protective covers made of cotton material that are worn over shoes or boots to keep them clean and dry. Full definition
GroVia Shell is a hybrid diaper cover that has snaps inside to hold the snap - in organic cotton soaker pad, which is the absorbent part. (greenmountaindiapers.com)
The GroVia One Size Diaper System is two-fold; outer diaper «shell» and inner, snap - in, certified organic cotton soaker pad. (diaperjunction.com)
Note: If your little one is approaching the time for potty training, you may want to consider the GroVia Organic Cotton Soaker Pads instead. (overthemoondiapers.com)