Powerbank for portable/wearable neopixel/2812

I am hoping to create a digital/arts mashup for our school night of excellence. The plan is to have perhaps a 30 or 60 pixel WS2812 strip sewn in to a dancers outfit with maybe an esp8266 - creating a LED suit.

I’m not too great with figuring out the power requirements. Is there any chance of using an off-the-shelf powerbank to make all this work? :slight_smile: