I own both. SWK heavyweight, and Fredonline Deluxe. There is no comparison in terms of the material. SWK is a much stronger, heavier material. Fredonline are acrylic and light. Definitely wear a heavy kilt pin with that one. Fredonline's kilts fit better though. SWK is a little tight on the hips, so I use a buckle extender on the 2nd buckle. I usually wear Fredonline around the house or short trips out. Also, I always get annoyed by the extra long lining on the SWK. I think I will sew it down or something. Hmm... I'll post pics on that later if I do it.