Independent guides to bedding, towels, clothing and baby gear that are genuinely 100% cotton, with the fiber content, thread, elastic and certifications checked.https://mustbecotton.com/https://mustbecotton.com/learn/gots-vs-oeko-tex-vs-ocs/https://mustbecotton.com/learn/gots-vs-oeko-tex-vs-ocs/GOTS, OEKO-TEX and OCS answer three different questions. Here's what each one checks, what it doesn't, how much non-cotton it allows, and how to verify a claim in two minutes.Tue, 20 Oct 2026 00:00:00 GMThttps://mustbecotton.com/learn/how-to-tell-if-sheets-are-really-100-cotton/https://mustbecotton.com/learn/how-to-tell-if-sheets-are-really-100-cotton/A legal “100% cotton” label can still leave out the thread, the elastic and the trim. Here’s how to read sheet labels, decode the marketing, and check the parts the label skips.Tue, 20 Oct 2026 00:00:00 GMThttps://mustbecotton.com/learn/is-plastic-clothing-lowering-testosterone/https://mustbecotton.com/learn/is-plastic-clothing-lowering-testosterone/Polyester underwear, BPA in socks, microplastics in testicles: we read the actual studies. Here's what's well established, what's still a hunch, and what you can sensibly do about it.Tue, 20 Oct 2026 00:00:00 GMT