12 hours. No bathroom trips. No backup needed. The Eco Period Cup lets you swim, hike, cycle, do yoga, and sleep through the night with complete confidence. Holds the equivalent of 4 tampons worth of flow — reusable for 5–10 years, saving you money and reducing waste with every cycle. Free of BPA, phthalates, bleaches, latex, and plastic. Ball grip end for easy removal. Which size? XS — lightest flows, teens, and first-time cup users. Smallest diameter, longest stem. S — average flows, teens and women. Standard diameter and capacity. L — heavy flows, low cervix, or if you've experienced natural childbirth. Widest diameter, largest capacity. Specifications: XS — 38mm diameter · 55mm length · 13mm stem · 15ml capacity S — 43mm diameter · 63mm length · 15mm stem · 25ml capacity L — 47mm diameter · 69.5mm length · 19mm stem · 30ml capacity BPA-free | Latex-free | Reusable 5–10 years | 12-hour protection | 3 sizes