Sport revolution! RunbDuo is the elastic, ultra-light and adjustable belt ideal to bring your smartphone and other small objects during your sport activities. The inner pocket protects your smartphone from scratches and ensures stability during your training sessions. RunbDuo is made of waterproof and washable materials that protect your smartphone from rain and sweat. The touch responsive transparent windows allows you to freely use all your smartphone features: manage your apps, answer or reject incoming calls or choose the perfect playlist without removing it from the belt! Listen to your favorite music thanks to the rubberized hole for earphones. It is also equipped with a side pocket to carry with you keys, cash or coins. Compatible with smartphones up to 5 ''. * Taptic engine technology supported.