Low profile is the least steep slant to the front of the hat and this profile is normally associated with a sport or a golf style hat.
Mid-profile is a bit steeper slant to the front of the hat and is normally associated with what a baseball player would wear.
Additionally, this style hat tends to be a bit of deeper fit.
High profile is almost a straight up slant to the front of the hat and is normally associated with a trucker or a snapback style hat.
High profile 5 panels
5 panels caps are mainly used for trucker caps or caps that have screen printing or large embroidered/printed patch on the front instead of embroidery.
Military cap or forage cap is characterized by a small brim and a tubular construction with a flat top.
A partial brim, usually extending out at the front of a headband.