Massage Chair Track Types Explained: How S-Track, L-Track, and SL-Track Actually Change Your Massage
The track is the metal rail your rollers ride on, and its shape decides where the massage actually reaches on your body. S-Track follows your spine up to your lower back. L-Track and SL-Track keep going, reaching down into your glutes and hamstrings, which is the area most home chairs never touch. If your main complaint is that a chair never reaches your hips or lower back, track length matters more than chasing an extra "D" on the roller spec.