The best darn shirt for pounding metal...
I've been wearing Arborwear since the day Bill Weber showed up at a trade show with pants that were perfect for all my hobbies -- outdoor adventures in canoeing, caving (spelunkers are eggheads -- I'm a caver), woodworking and most hazardous, blacksmithing.
The Original Treeclimber shirt is the perfect weight for swinging a hammer without any binding around the underpit -- that sucks. The short placket in the front doesn't catch sparks and when sparks hit the fabric they bounce off like nothing.
Anyway...good stuff. P.S. I also wear the pants, which are great too.