<p><span style="font-size:18px">The side straps of our elite strap adapted upgraded polymer material, which has much better tenacity that could stand over 100,000 times bending and is eco-friendly.</span></p><p></p><p><strong><span style="font-size:24px">Optimized Wearing Design</span></strong></p><p><br/></p><p><span style="font-size:18px">When putting on or taking off the headband, just adjust the knob to easily put on or take off the headband.</span></p><p><br/></p>