Dengbb Sport Arm Bag Waterproof Sweat Proof Adjustable Arm Strap, Suitable for iPhone, Samsung&Mobile Phones Up to 6.0 Inches in Size.

Multi functional armbands are suitable for smaller and larger arms without slipping: adjustable strap Velcro has a wide range of two fixed sizes and can support any arm girth from 8 inches to 20 inches to protect and stabilize the equipment without slipping or shrinking during indoor or outdoor activities. Running mobile phone armband has no worries.High quality material mobile phone bag: the fitness arm belt and exercise belt are made of skin friendly breathable mesh and high-quality fabric, with waterproof, reflective and sweat-proof functions, soft, no odor and absorbable. Lightweight wear experience. The iPhone running armbands for men and women are designed to bend, twist, bend and fold during activity without bending.Safety protection and versatile plus armband: this running zipper bag with double and double zipper sports bags, plus size design, can be used for your mobile phone as well as house or car keys, ID card / credit card, cash, headset, iPod, MP3, passport, cable, tissue