Ribbed vs. Seamless Underwear: What's the Difference?
The difference is texture and look. Ribbed underwear is knit with raised vertical lines, giving it a soft stretch and a textured surface; seamless is knit smooth with minimal edges for an invisible-under-clothing finish. They feel different against the skin — ribbed has a little grippy texture and tends to hug with a comfortable stretch, while seamless feels flat and barely-there.
Which to pick comes down to use: seamless disappears under fitted clothing like leggings or a clingy dress, so it's the choice when you don't want any line to show; ribbed has a nice everyday feel and a slightly more substantial texture that some people simply prefer. Neither is "better" — it's look and feel. Whichever you choose, soft, breathable fabric is what keeps it comfortable all day. More in what is seamless underwear.
Try BHG everyday basics.