If your dream wardrobe leans more coastal boutique than big-box basics, these maxi dress pieces are right up your alley. Flowy maxi dresses are a quintessential part of beachside dressing, especially since they're elevated, breezy and body skimming. The result? A pulled-together effect that looks just like picks you'd find off 30A. While browsing Amazon, we found a wave of styles that channel that airy, seaside energy without the splurge. From softly draped silhouettes to waist-defining details and elongating lines, these under-$50 picks are designed to flatter from every angle.