Hmm, I am at odds with some here then. I own nearly 40 Warmbac suits for work. They get pressure washed after each and every trip and are no stiffer than when they were new. I get some new ones arriving this week so will have to check. The death of most fabric caving suits is, I am sure, down to tearing open at the seams because of inflexibility in the fabric and weakened stitching due to the abrasion of sharp particles. All down to not cleaning properly. Pressure wash every trip, occasional wash with fabric softener and I'm sure some of my suits are almost inseparable visually from new. I agree about the not hanging in direct sun all the time though.