If this were a knitting question, I would have to answer that it does have a seam. From the standpoint of practical functionality, the sock is "seamless." One does not experience the seam at the toes, or anywhere. A "princess" would sense the embroidered letters for SMARTWOOL before sensing the seam. But then, I am but a humble peasant who runs miles and miles, not one who requires a high stack of mattresses...
Answered on 10/19/2014 10:03:32 AM by Sarabeth Wyatt from Princeton
They do have a seam, but it is so well made you cannot feel it, I had to look closely to distinguish between the seam and the embroidered Smartwool logo. They are thin, light, and very comfortable for either running or Insanity workouts.
Answered on 10/19/2014 10:54:36 AM by Formerly Known as the wolfman from NC
Answered on 10/19/2014 5:34:18 PM by droF from Novi, Michigan
NO! The top about at place just before toes meet foot is a sewed seam. No seam on bottom of toes. I have had no problem with the seam and have these on everyday.
Answered on 10/19/2014 6:05:07 PM by Frederick outdoor man from New England