The hermetic armband is made of skin-friendly, elastic material and follows every movement. And thanks to the special film, the smartphone remains touch-enabled. With the included belt extension, the lengthening for larger sizes can be attached quickly and conveniently.
Features 
•   Endures every move and protects your phone
 
•   Magnetic self-sealing strip with Gooper® technology
•   IPX8 rating
•   Full phone functionality through case 
 
•   Optional arm width extension included
 
Technical Data 
-   Bag External: 110 x 233 x 9 mm / 4.33" x 9.17" x 0.35"
 
-      Bag Internal: 100 x 177 mm / 3.94" x 6.97"
 
-      Band: 360 mm / 14.17" | with Extension: 460 mm / 18.11"
-      Weight: 78 g / 2.75 oz