MoKo Sweatproof Ankle Strap for Fitbit Trackers (2-Pack, Black)

[COMPATIBILITY: Personalized Your Fitbit LuxeInspire 2Inspire Inspire HR Flex Flex 2 Alta Alta HR Ace One Charge 5 Charge 4 Charge 3Charge 2 Garmin Vivofit / 2 / 3 / 4 vivosport vivofit JR vivosmart HR Activity Trackers. Fitness Tracker NOT included. COMFORTABLE: The surface is made of premium neoprene material soft and delicate comfortable and breathable to prevent your belt from getting wet. The internal is made of microfiber it’s skin-friendly. PROTECTION: The ankle strap comes with a secret pocket you can put your fitness tracker into the secret pocket that ensures your fitness tracker stays securely inside. DOUBLE CONCEALED BUTTON DESIGN: Zinc alloy double concealed button design fits 8.2"-12.2" (210mm-310mm) ankle circumference comfortable to wear ensures the ankle strap is fixed to your ankle. WATERPROOF AND SWEATPROOF: The air holes on the surface make you feel comfortable and breathable the wider and thicker design makes you feel less tense it can waterproof and sweatproof.]