{
  "slug": "underwear",
  "name": "Underwear",
  "question": "Which underwear has no plastic in the waistband elastic, the leg elastic, the thread or the fabric?",
  "status": "draft",
  "updated": "2026-11-11",
  "editor": "jake-avins",
  "page": "https://amaterio.com/plastic-free/underwear/",
  "summary": "",
  "whyPlastic": "\"Organic cotton\" names the fiber and nothing else. Underwear stays on because of elastic: an elastane core wrapped in nylon or polyester, running through the waistband and around each leg opening. Many cotton briefs are 95 percent cotton and 5 percent elastane in the knit itself. Stitching is polyester thread. The tagless label is a heat-transferred polymer print, and the logo on the waistband is woven polyester. Fly buttons are resin. Merino briefs add nylon for strength. The makers who avoid all of it use a cotton drawstring or natural rubber elastic.",
  "whatToCheck": [
    "Fabric: 100% cotton, wool or hemp, with no elastane?",
    "Waistband: a cotton drawstring, natural rubber named as natural, or elastane elastic?",
    "Leg openings and seams: elastic-free, or elasticized?",
    "Thread: 100% cotton, or polyester?",
    "Fly buttons: wood, corozo or shell, or resin?",
    "Label: woven cotton or none, or a heat-transferred print?"
  ],
  "faq": [],
  "whyNone": "",
  "products": []
}