I've only ever hiked in 16oz, 100% wool kilts with knife pleats. I quickly learned that the length of the kilt was more important that the pleat. The important thing is to have the hem well above the back of knee to avoid "kilt burn" which can be quite excruciating. I really liked my wool hiking kilts--they weren't hot, kept you warm if it suddenly got cold, did a good job of shedding water in a sudden shower, and weren't apt to melt or burst inflames if one got too near a fire or smoker. Just like I'd never go hiking in cheap boots or acrylic socks, I'd never set out in an el cheapo plastic kilt.