Since going vegan (not strictly so, but our regular, daily & weekly diet no longer contains meat or dairy and hasn't since summer), I've lost about 15 lbs (7 to 8 kg)...

When I received my B&S Maple Leaf tartan kilt in July 2011, it fit me very well... Now it's on the smallest buckle hole... If (when) I lose more weight, I'm also going to have to make a decision on how to approach the issue, and I'd be lying if I said I knew the answer.

What I DO know however is that I would probably acquire a new kilt (just one) in my new size, and hold off on any alterations or kilt purchases until such time as I felt that the weight would be staying off... For everyone that may be different but for me, it would be nothing less than 6 months of being at a consistent size...