Index Sleep Monitor Size:L/XL Mesh details keep the air

Mesh details keep the air flowing where you need it most

combining signature colours with a pinstripe design in way that embodies the essence of Borussia Dortmund

Contrast details

With its sleek pullover design and roomy relaxed fit

Responsive TPU plate to start

Index Sleep Monitor Size:L/XL Mesh details keep the airTHE MOST COMFORTABLE SLEEP YOUVE EVER TRACKED For a more comprehensive view of your fitness and recovery, the Index Sleep Monitor is the lightweight smart band that tracks your sleep1 while maximising comfort. COMFORTABLE, BREATHABLE DESIGN WORN ON THE UPPER ARM UP TO 7 NIGHTS OF BATTERY LIFE SLEEP TRACKING AND RECOVERY METRICS BREATHING VARIATIONS THROUGHOUT THE NIGHT SKIN TEMPERATURE TRACKING FOR PAST OVULATION ESTIMATES AND MORE MACHINE WASHABLE