Detergent

[zoom-zoom]

Maybe it's the water? I know water hardness influences how dyes set, so it wouldn't surprise me if it influences how stains set.

It's possible, though our hard water doesn't have this effect on non-synthetic whites. Perhaps if we wore the sport sunblock it would, though. We don't get pit-stains on our jerseys, just the sunblock stains. Shame, since SO many jerseys have white trim around the neck, which is the first place that yellows from sunblock.

[Owlie]

It's possible, though our hard water doesn't have this effect on non-synthetic whites. Perhaps if we wore the sport sunblock it would, though. We don't get pit-stains on our jerseys, just the sunblock stains. Shame, since SO many jerseys have white trim around the neck, which is the first place that yellows from sunblock.

It does depend on fiber type (e.g., wool and other animal fibers will take acid-based dyes, but cotton won't), so maybe?

I wish they wouldn't do that with jerseys. It looks cool when new, but after a while....ick. I don't have a problem with sunblock (don't use it... ), but it still gets a bit nasty. Luckily I only have two with white collars and I don't wear either of them much.