Amazing Elasticity We recommend using one size larger than your standard size due to period bloating. For more sizing help, click here Ex. Your size M -> Purchase size L hannah⋮SENSE Thong is a period underwear designed to be worn without pads, tampons, or menstrual cups. They are carefully designed to soak up menstrual blood, with one layer of inner organic cotton sheets. Stay protected while feeling comfortable. Best for: Light period days, back up for light days, and moderate discharge. Extra Comfort: It feels like you’re wearing your favorite underwear. Period days, just like regular days. Best alternative for disposables: Full Coverage: Front and Back Protection Certified Organic Cotton: Certified by Control Union. Unbleached & Undyed: No harmful chemicals in the in-layer fabrics. Leakproof Protection: Leakproof technology. Fast absorption, keeping you dry as possible while keeping your skin breathable. Economical with Long Term Savings: With one eco-purchase this underwear is reusable for years, replacing all other single use menstrual products. PFAs FREE: We've been getting a lot of questions about PFAS. Although we do not have any certifications, our period underwears are PFAs FREE. Guaranteed. We do not use unwanted materials in all our products. Comes with: 1 - hannah⋮SENSE Thong 1 - Reusable pouch: to store your hannahSENSE or to bring with you wherever you go. NOTE: Wash before first use. Fabric: Body part1: 92% Polyester, 8% Spandex Lining layer1: 100% Organic cotton layer2: 100% Organic cotton layer3: 100% Cotton + TPU