I used to use Naturalamb condoms, which were made from lamb cecum derived from New Zealand and finished in the US by a subsidiary of the Trojan company.
They were not perfect, because they still used some questionable stuff in the stuff they put on them, but they were better than any other options on the market.
In the way of things, the company that owns Trojan quietly quit making them, probably mostly due to legal and health factors that would be suitable for discussion on another thread, in another forum.
There are, as far as I can tell, no other lamb or natural material condoms on the market right now in the US.
What do you all use for contraception?
Priority is natural material and natural substances.
Looking only for contraception - STI protection is not important, as usage is restricted to a monogamous relationship.
I know one option is the rhythm method of tracking ovulations and "just pulling out," which are both fine and good - but I'm still looking for a good natural condom.