Wraps.

A wrap is a breathable waterproof / water resistant cover, which are made from 3 different types of material.

1. PUL (Polyurethane Laminate)

A breathable waterproof fabric.                                         

 2. Fleece

Water resistant, more breathable than PUL, popular choice for nightime use.

3. Wool

Needs to be Lanolinised to make it water resistant. Requires little care (hand wash every few weeks) is more breathable than PUL and fleece.