Not much, if at all! The choice of fabric is governed by many factors. A wide range of fabric types, weights and colours are available in the industry. A range of high quality fabrics are available. However, any fabric mesh has a number of disadvantages against a solid waterproof fabric, such as: -Being a mesh fabric, it traps dust and dirt resulting in a dirty and unsightly appearance – More regular cleaning intervals due to the above – The build-up of dirt allows mould to grow on the surface of the fabric, significantly shortening the life span In general, the construction, workmanship, material and techniques are all the same for mesh fabrics and waterproof fabrics. The cost of the material is the only difference. Some high quality knit fabrics can be more expensive than solid waterproof fabrics.