These trend-staples are all so chic and cheap we just had to share them. Call them fanny packs or waist bags or belt-bags, the fashion vine knows they're must-haves right now. No cool kid worth her dime will be seen without one this year. But, what makes them more enticing are the price tags. All under $50, these styles have struck fashion gold. Style them with just about anything and strut your ironic millennial behinds like you don't give a hoot. Look out for the all-sequin rendition that is the bag equivalent of highlighters.