Shapleys Hi Gloss Finishing Spray. The Shapleys Hi Gloss finishing spray is a light, oil based spray ideal for use to define muscles or dramatically highlight features. The Shapleys Hi Gloss finishing spray give your horses hair a super shine in seconds. It also conditions the hair as well as adding shine. Hi Gloss is excellent for adding dramatic shine just prior to entering the show ring. It accentuates all colours of horses. If used as part of a daily grooming routine it will keep skin and hair supple and conditioned.