The '90s Trend: Crop Tops Baring a bit of midriff is hardly exclusive to the '90s, but there are plenty of quintessential outfits where these skin-baring tops are at the crux, particularly a plaid or sweater style. Free People Real Love Plaid Tank ($78) Image Source: freepeople.com Free People Real Love Plaid Tank $78 from freepeople.com Buy Now