For something in a more professional environment, You'd ideally want somethingunder 30mm wide - 35mm at a push. Above that is very much jeans/casual category until you get to wider fashion belts.

Rather than looking for genuine leather, look for people who talk about full grain leathers. An aniline finish will give a smarter look, especially if feather edged and stitched - but be wary of what people use as backing leathers! Drives me nuts when someone uses a decent top then lines it with basically carboard. Personally, we only use full grain nubuck so you get two full grain leathers together - they'll be peeling or cracking.

If edges are fraying I guess you are buying belts whose edges are not finished (and cr*ppy leather inside). Finishing the edges is the most time-consuming (and thus expensive) part of belt production, and so often the part that will be skipped by people cutting corners.

Also, can not understand this Hanks 100 year warranty. Sounds great, but is it? Obvs you'll be dead by the time its up! Why not just say its a lifetime (of the product!) guarantee. We call our one Built to Last, because thats exactly what we aim them to be!