Curvy pads are a recent edition to the Scarlet Eve range, as of May 2015.
These are the exact same shape and make up as the Just Light pads, but contain PUL for waterproofing. They are the length of a Regular pad (around 25cm) and the snapped width is 7cm (1cm less than a Regular Pad).
Curvy pads are made with 2 layers of bamboo sewn in (like Mini Pads), they are longer and curvier shaped than the Mini pads, but they do have PUL in them.