Way back when I did a comparison too...may not even be accessible.

My basic comparison is I've owned 3 SportKilts and 22 USA Kilts.

Have trouble getting past the "pajama-like" look of the SportKilt cotton/poly...course its nice for hiking regimental...softer...that's about it. Always be certain to order a SportKilt with sewn down pleats...otherwise you'll get it gathered and it'll look like a skirt rather than a kilt.

My two cents.

Ron