Monastic Tradition feature is a Monk feature gained at level 17 in D&D 5e. When you reach 3rd level, you commit yourself to a monastic tradition, such as the Way of the Open Hand.
When you reach 3rd level, you commit yourself to a monastic tradition, such as the Way of the Open Hand. Your tradition grants you features at 3rd level and again at 6th, 11th, and 17th level.