The eTEKNIC Sports armbands have been designed with functionality as a
priority. Each model has 4 cut outs, the iPhone 6/7 Plus model has a
cutout for the lightning port as well. This ensures that more models of
phones can be used with each armband. They consist of a high quality
neoprene for comfort and sweat resistance, and feature a convenient key
slot for your house or locker key.