Morris correct in his description of the tuck in selvedge and rapier loom. Older style shuttle loooms provide a selvedge that is usually imperceptible, whereas the faster rapier looms cut the end of each weft thread(those running perpendicular to the long axis of the bolt of fabric, or selvedge to selvedge) and literally tucks it back into the warp threads along with the next weft thread for a bout 1/4-3/8 inch, making the selvedge slightly thicker than the rest of the fabric and sometimes with a somewhat frayed looking line visible where all the tucked in cut ends line up. In my experience, HoE is not thee only one who uses these looms and they seem to do a good job keeping them "in tune" enough that their tuck in selvedges are pretty unnoticeable. Others are less consistent.

The Nevis range of HoE tartans is just their 16 oz tartan group that is made on those looms. Their web site:

http://www.houseofedgar.com/acatalog/Tartans.html

HoE is known for its rich colors, its Rare and Select line of some unusual and uncommon older group of tartans, and for actually extending its business beyond just the weaving process to actually include some finished products and a line of Highland attire and accessories at retail.

I have one HoE Nevis kilt, the fabric is fine and the selvedge only noticeable if you really go looking for it. I also have one in a rare and select tartan made on a more classic looom with a standard kilting selvedge that is in 13oz tartan whose selvedge is only slightly better despite the different technologies used. The colors in each are beautiful and strong, the fabric finish is very good. Their fabrics are well known and they are a well respected well established company in the tartan business.