Have been buying this brand for years, they hold up well and have never ridden up, unraveled or frayed. I get the briefs I would recommend buying a size smaller if your on your knees or bending over alot at work.  The XL can be seen above my waist line (Jean's) and pulling my shirt down to cover is very annoying. The LG feel as comfortable as the XL and stay below the waist line.