How does cuticle help in reducing evaporation of water?

The primary function of the plant cuticle is as a water permeability barrier that prevents evaporation of water from the epidermal surface, and also prevents external water and solutes from entering the tissues.In addition to its function as a permeability barrier for water and other molecules, prevent water loss, the micro and nano-structure of the cuticle confer specialised surface properties that prevent contamination of plant tissues with external water, dirt and microorganisms.?Kindly prefer the digram below...