My hairstylist friends are always buy their cool, trendy outfits at Goodwill or other local thrift shops. That way, when they inevitably get permanent hair color on their clothes, they can shrug casually and say, "Oh well, I only paid 3 bucks for this". In the summer, they usually wear a lot of dark color lightweight denims, or fine wale corduroy - which is probably too heavy for the Caribbean. So maybe wear stretchy dance-inspired pants. Max Studio makes some cute ones, I have two pairs that I have worn weekly for 2-3 years now.
Whatever you wear, don't use fabric softener or dryer sheets on your work clothes! My ex was a military pilot, and we were warned that fabric softener and dryer sheets can strip away the flame/fire retardant properties of fabric. So his flight suits were always hung to dry.