Hence, based on the situation which necessitates their use and other different factors, there are four types of holsters. They include duty holsters, tactical holsters, concealment holsters, and sporting holsters. Depending on where you’re to attach them, we have ankle, pocket, shoulder, outside the waistband (OWB), and inside the waistband (IWB) holsters. Others are groin, chest, strut, pancake, snub, and cross-draw belt holsters.