Stretch armband is made of the highest quality soft 2mm neoprene material, so it flex, twist, and bend but not stretch out of shape. 

Removable & Adjustable Strap: Simple, Easy and Universal- Adjustable strap allows for quick and secure wrap to different size.

Double adjustment slots to fit any arm sizes for skinny to giant.Touch-through screen cover allows full touch screen operations. Full screen protector guard against sweat, bumps, scratches, etc.