Swim, float, dive, or lounge—FlowBase™ is your discreet, absorbent swim-safe underwear made to wear under your regular swimmers. Designed to support you on light-flow days or as backup protection, it’s as comfy as your fave undies, only water-ready. Whether you're hitting the beach on your period or just want an extra layer of security, FlowBase™ is here to back you up—literally. Made with a water-resistant outer coating to keep water out and advanced absorbent layers to hold your flow in, FlowBase™ gives you the comfort and freedom to enjoy every splash without second-guessing. ✨ Invisible Under Swimwear: Thanks to its seamless edges and high-leg cut, it stays hidden under most swim styles with full or regular coverage. 🩸 Discreet but Mighty: Holds up to the equivalent of 2–3 tampons or 4 regular pads, all without the bulk. 🌊 Made for Movement: Wear it under a bikini or one-piece, or on its own during lighter days, spotting, or for peace of mind during cycle shifts. Why You’ll Love FlowBase™: ⭐ Water-Resistant Coating Prevents pool or ocean water from soaking in, while locking your flow in safely. ⭐ Invisible Under Swimwear No seams, no bunching, no awkward lines—just smooth support where it matters. ⭐ Same As 4 Pads High-performance absorbency with zero visible bulk. ⭐ Made to Last Chlorine-resistant and durable—just give them a rinse after use and they’re ready for next time. ⭐ OEKO-TEX® Certified No nasties, no harsh chemicals—just gentle, body-safe comfort. ⭐ Swimming AUS Compliant Tested against Swimming Australia's Inclusive Swimwear Policy, so you can wear them with confidence. How to Wear: Slip them on under your swimmers like you would any undies. Perfect for: * Beach or pool days during light flow or spotting * Teens