Unseamly® thongs are 
(literally)
The Holy Grail®.

Holy Grails® are more comfortable because they don't have rough fabrics, scratchy seams, or abrasive elastics in the ladyzone.

Holy Grails® are also more comfortable because the side seams are inside the garment, so there's nothing scratchy in contact with your skin.

Holy Grails® are more durable, due to the unique internal seam construction.

Patented 2-ply design provides better protection from pant seams, zippers, the elements, etc.  

Both layers are made from incredibly soft, natural, absorbent, breathable, micromodal.

Holy Grails® don't ride up in the front, so they don't cause painful wedgies in the ladydistrict™.