The MicroStretch Flash Waist pack is a super minimalist way to carry essentials!  This ultra-comfortable, ultra-light, no bounce stretch pouch expands more than 4x to fit your basic essentials and that is just the beginning of the great features of this belt. This belt is equipped with: 
A Flashing integrated LED light beam with a push-button activation
It is USB rechargeable and it comes with the cable
Three Modes of a LED beam – solid, slow flash and fast flash 

But wait there is more….. 
Cool reflective detailing
Expandable so you get more  storage capacity  which is moisture resistant 

And finally 
Fully-adjustable, comfortable stretch-enhanched belt