Tested the way you really wear clothing.

UV STANDARD 801 is a strict test that few clothing brands undergo. UVEEKAI is one of them: our entire collection is certified to UV STANDARD 801 by the Hohenstein Institute — not just selected items.

Unlike a pure lab value, UV STANDARD 801 tests under real-world conditions: wet, stretched and after repeated washing. That way the UV protection holds up in everyday use — when swimming, sweating and after many washes. The German Federal Office for Radiation Protection describes the difference: AS/NZS 4399 and EN 13758-1 measure only unstretched, dry textiles in mint condition, while UV STANDARD 801 also measures wet, stretched textiles — and only the lowest UV protection factor found during the entire test is declared (Source: German Federal Office for Radiation Protection (BfS)).

Good UV protection clothing measurably keeps UV radiation off your skin, and that matters: according to the German Federal Office for Radiation Protection (BfS), UV radiation is the main cause of skin cancer. It can also trigger skin conditions such as so-called sun allergy (polymorphic light eruption). Look for two details: the UPF value and the test standard used to determine it. The BfS advises this too. EN 13758-1 and AS/NZS 4399 measure new, dry, unstretched fabric. UV STANDARD 801 also measures the fabric wet and stretched, and only the lowest value from the entire test is declared. Colour or material alone tell you little; what matters most is how dense the fabric is. And check the cut: only the skin the fabric covers is protected. (Source: German Federal Office for Radiation Protection (BfS), 'UV protection through clothing', 'Long-term effects' and 'Acute skin damage')

UPF and SPF are measured values. They show how strongly a form of protection reduces UV radiation, which helps you protect your skin in a targeted way. That matters because, according to the German Federal Office for Radiation Protection (BfS), UV radiation is the main cause of skin cancer, both non-melanoma (‘white’) skin cancer and melanoma (‘black’ skin cancer). It also ages the skin prematurely and can trigger skin conditions such as so-called sun allergy (polymorphic light eruption). Both values state by what factor the time until sunburn is extended. UPF (Ultraviolet Protection Factor) applies to textiles and is measured in the lab from how much UV the fabric lets through. SPF (sun protection factor) applies to sunscreen and, according to the BfS, describes protection against UVB; UVA protection is labelled separately. In practice there is one difference: SPF only applies if you use enough, and using half the amount can cut it by two thirds, says the BfS. With UPF, quantity plays no role. (Source: German Federal Office for Radiation Protection (BfS), 'Long-term effects', 'Acute skin damage', 'UV protection through clothing' and 'UV protection through sunscreen')

The Hohenstein Institute is the independent testing body behind UV STANDARD 801. It tests and certifies the fabrics. UVEEKAI's materials carry their own Hohenstein certificate numbers: 24.1.10.0433-80-1 (UV-Tech 168: long-sleeve and hooded shirts, men's swim shorts) and 24.1.10.0434-80-1 (UV-Tech 231: leggings, long pants, women's swim shorts).

Every UVEEKAI piece is certified UPF 80 — the highest of the certification levels in UV STANDARD 801 (UPF 10, 15, 20, 30, 40, 60 and 80) (Source: uvstandard801.com). Mathematically, only about one eightieth of the sunburn-effective UV radiation passes through the fabric, and the value also applies wet and after washing, because it is measured under those conditions.

Yes — UVEEKAI's entire women's range (long-sleeve shirts, hooded shirts, leggings, swim shorts) is certified to UV STANDARD 801. Browse the women's collection.

UPF (Ultraviolet Protection Factor) is the UV protection factor for textiles. With UPF 80, mathematically only about one eightieth of the sunburn-effective UV radiation passes through the fabric — so, mathematically, more than 98 % of it is held back. UPF 80 is the highest certification level in UV STANDARD 801 (Source: uvstandard801.com).

There is no fixed number of hours, because the time until sunburn depends on your skin type and the UV index. What can be said: with UPF 80, mathematically only about one eightieth of the sunburn-effective UV radiation reaches the covered skin. This does not apply to uncovered areas. For sunscreen, the BfS advises using no more than 60 per cent of the calculated protection time. There is no such figure for clothing, but the international UV STANDARD 801 testing association advises always allowing a time buffer. Shade at midday and sunscreen on exposed skin are still part of it. (Source: German Federal Office for Radiation Protection (BfS), 'UV protection through clothing' and 'UV protection through sunscreen'; International Testing Association for Applied UV Protection, 'Textile UV protection')

UVEEKAI offers certified UV protection clothing for women and men: long-sleeve shirts (also hooded), leggings, long trousers and swim shorts — all UPF 80 to UV STANDARD 801. Women · Men.