Figure 1: We propose proprioceptive motion feedback to align user's physical movements with the expected motion style of their avatar to enhance embodiment in virtual reality (VR).MotionStyler is a proof-of-concept system for designing and rendering such proprioceptive motion styles in real-time in VR with an arm-based exoskeleton.Based on a conceptual space comprising eight motion properties grouped into four key dimensions, an accompanying design tool helps designers to combine individual properties into expressive proprioceptive motion styles; e.g., they might mimic the motion style of a rigid treefolk by combining the sensation of heavy, creaky limbs with a reduced motion speed and range.