DROP-IN Are you traveling to Boston? Interested in a Drop-In? Check out our Drop-In information below: IPHONE USERS: Click here to book now. See our open class times and secure your spot using the Highfive Drop-In app. ANDROID USERS: Email info@invictusboston.com to schedule your Drop-In appointment.Drop-In fee for a single session: $30.00 We look forward to meeting you!