Donwell Smart phone armband holding case

1.Ultra-thin,Lightweight,Breathable:Made of premium soft Lycra material,very comfortable to wear. 2.Ajustable:Comes with two loops for the adjustable strap.Option A (smaller arm): 8.5"-11". Option B (bigger arm): 10"-15.5". 3.Support touch ID/fingerprint unlock:provides full access to the phone through the transparent window.You can easily operate your phone as usual while exercising. 4.Provides perfect location for your Card,Key,Earphone. 5.A reflective For iPhone 12 Pro Max & many others