A cold weather must-have! Machine Gun Kelly Compression (long sleeves) in Machine Gun Kelly Merch. Looking for a way to increase your strength and endurance during your workout? Check out Machine Gun Kelly’s Compression Gear! This apparel provides the support you need to achieve your fitness goals, while keeping you comfortable during your workouts. With Machine Gun Kelly Compression (long sleeves), you’ll be able to work harder without feeling bulky or restrictive.