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Fabric protection does not wash off, sweat off, or need reapplying every two hours. That is its main advantage over lotion for swimmers spending long stretches in the water. You generally do not need sunscreen underneath a UPF 50+ stinger suit. The fabric is already doing that work. What you do need is coverage for exposed skin — face, ears, hands, feet, and any gap at the neckline or wrist. …

A stinger suit's sun protection is measured by its UPF rating, which tells you how much ultraviolet radiation the fabric blocks before it reaches your skin. Understanding how that number differs from sunscreen SPF, and where the fabric leaves gaps, helps you judge whether a suit is doing the job you expect. UPF 50+ Versus SPF Ratings UPF stands for Ultraviolet Protection Factor and applies to fabr …

Stinger suits reduce risk from marine stingers, but they do not make you immune. Australian box jellyfish (Chironex fleckeri) have tentacles that can extend several metres, and a sting to any uncovered area — face, hands, feet, or scalp — can still be severe or fatal. Irukandji jellyfish present a different problem: the bell is often only 1–2 cm across, small enough to drift thro …

You're planning a swim, snorkel, or dive in warm water, and you've heard that a thin full-body suit can keep you safe from both jellyfish and sunburn. It's a fair question to ask whether such a lightweight garment can really do either job well. Yes, stinger suits work on both counts: their tightly woven nylon or spandex fabric creates a physical barrier that blocks most jellyfish stings from reach …