I use the Assos Active Wear cleanser which is a commercial product that does the same as some of the home remedies previously listed.
It works for me, and it has the benefit of maintaining the warranty on the Assos Clothing, which is worthwhile, given the extreme cost of the clothing to begin with.
Their clothes are guaranteed not to shrink, stretch or become misshapen, if you follow the directions for care. If you have an issue, they will repair or replace them. (The time frame is relative, but I've had my F1.13 bibs replaced after 1.5 years, so it should be at least a 2 year period.)
Cost varies, but in my area the small bottle is 10 dirhams (USD 2.5) and the large bottle is 40 dirhams (USD 10).
*Note - this refers to issues with care, not with sewing or graphic defects. That portion of the warranty is 200 miles or 300km on the
bike, which is flexible to say the least.
From the Assos website:
[Active Wear Cleanser]
When laundering ASSOS clothing, we recommend traditional hand washing
or gentle machine washing, using ASSOS Active Wear Cleanser. ASSOS
Active Wear Cleanser is delicate on elastic fibers, pH neutral,
neutralizes odors, enhances textile breathability and maintains sharp