Background: A year or so ago, I noticed that a pair of bib shorts had a spot of deterioration on one of the thigh panels. Basically it was a round spot where the outer weave had apparently disintegrated. I thought about it and decided that a drop of chain lube must have damaged the fabric. Meanwhile, the shorts were washed in the same way that I've been doing this for years. The thing is... I continue to get these spots of deteriorating fabric. It's only on the front leg (thigh) panels and nowhere else.
Considering the location and pattern of the fabric damage, the only thing that seems logical is sunscreen dripping from my face to the shorts. The problem looks like drops that expand and grow from the original drop.
So, what damages lycra? Or cycling clothing in general?
I have quite a bit of cycling and other sports gear made of similar fabrics which have not had this problem. This is really a puzzle. The gear is expensive and I'd just as soon that this not happen.