The Strictest UV Test in the World

UV STANDARD 801

Developed by independent research institutes in Germany, Austria and Switzerland

UV STANDARD 801 – PROTECT 80 – Hohenstein
In short

UV STANDARD 801 — which brands offer certified UV protection clothing?

Short answer: Several certified manufacturers carry UV STANDARD 801. UVEEKAI is one of them — a German brand whose entire collection is certified to UV STANDARD 801 at the highest protection factor UPF 80, independently tested by the Hohenstein Institute (test no. 24.1.10.0433-80-1).

Shop women’s collection → Men’s collection → Our certification

Popular certified products

UPF 80Women's UV Hooded Long-Sleeve Shirt UPF 50+ (UPF 80 tested) – Hoodie, Rot
Women's UV Hooded Long-Sleeve Shirt UPF 50+ (UPF 80 tested) – Hoodie, Rot
€109,00 *
View →
UPF 80Women's UV Leggings UPF 50+ (UPF 80 tested) – Swim Leggings, Blau
Women's UV Leggings UPF 50+ (UPF 80 tested) – Swim Leggings, Blau
€75,00 *
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UPF 80Men's UV Hooded Long-Sleeve Shirt UPF 50+ (UPF 80 tested) – Hoodie, Rot
Men's UV Hooded Long-Sleeve Shirt UPF 50+ (UPF 80 tested) – Hoodie, Rot
€109,00 *
View →
UPF 80Men's UV Long Bottoms UPF 50+ (UPF 80 tested) – UV Leggings, Schwarz
Men's UV Long Bottoms UPF 50+ (UPF 80 tested) – UV Leggings, Schwarz
€75,00 *
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* incl. VAT, plus shipping
80×
Ultraviolet Protection Factor

What is UPF?

UPF stands for Ultraviolet Protection Factor. The UPF value indicates how much longer you can stay in the sun with this textile without suffering damage.

UPF 80 means: 80 times longer protection than your skin's natural self-protection — for fair skin types, that's over 13 hours, more than an entire day outdoors.

UPF 80 is the highest protection level under UV STANDARD 801 — the strictest UV textile standard in the world.

(Source: Hohenstein Institute)

80×
Protection Factor
80 times longer protection
Highest protection level under UV STANDARD 801
Protection Comparison
Without protection 10 min.
With UVEEKAI UPF 80 13+ hours all-day protection
Practical Example: Fair Skin Type
10 min. × UPF 80 = over 13 hours
More than an entire day protected outdoors
Skin Type & Protection Factor

Protection Duration by Skin Type

How long does UPF 80 really protect you? The answer depends on your skin type.

Type I
Self-protection: 5-10 min.
6-13 hrs
with UPF 80
Type II
Self-protection: 10-20 min.
13-26 hrs
with UPF 80
Type III
Self-protection: 20-30 min.
26-40 hrs
with UPF 80
Type IV
Self-protection: 30-45 min.
40-60 hrs
with UPF 80

*Theoretical value. Additional sun protection measures recommended. (Source: Hohenstein Institute)

UPF Scale

Where Does UVEEKAI Stand?

Minimum
15
Good
30
Excellent
50+
UV Std. 801
60
UV Std. 801
80
UVEEKAI

Hohenstein quality label classifications. UPF 60 and 80 only achievable via UV STANDARD 801.

Protection values are based on the Hohenstein time factor system: UPF value x natural self-protection = maximum protection duration. Actual protection time depends on individual factors such as UV index, perspiration and activity. — Hohenstein Institute, uv-protection.hohenstein.com
801
Test Methods
Standards Compared
Not all UV tests are equal. UV STANDARD 801 is the only standard that tests under realistic worst-case conditions.
80
Strictest Standard
UV STANDARD 801
Germany, Austria, Switzerland
Up to UPF 80
Test Conditions
  • New fabric tested
  • Wet fabric tested
  • Stretched fabric tested
  • Tested after abrasion & washing
  • Worst-case value certified
  • Most sensitive skin type
Sun spectrum: Melbourne, Australia (Maximum)
50
AS/NZS 4399
Australia, New Zealand
Max UPF 50+
Test Conditions
  • New fabric tested
  • Wet fabric tested
  • Stretched fabric tested
  • Tested after abrasion & washing
  • Worst-case value certified
  • Most sensitive skin type
Sun spectrum: Melbourne, Australia
50
EN 13758
Europe
Max UPF 50+
Test Conditions
  • New fabric tested
  • Wet fabric tested
  • Stretched fabric tested
  • Tested after abrasion & washing
  • Worst-case value certified
  • Most sensitive skin type
Sun spectrum: Albuquerque, USA
UV STANDARD 801
6/6
AS/NZS 4399
1/6
EN 13758
1/6
Number of worst-case test criteria met
"The most unfavourable conditions (worst-case scenario) regarding solar radiation and skin type form the basis of calculation." — Hohenstein Institute (Source: uv-protection.hohenstein.com)
Looking for certified UV protection clothing?UVEEKAI’s entire collection — consistently UPF 80 to UV STANDARD 801.
View collection →
VS
The Difference

At a Glance

Not all textiles protect equally. The difference between regular fabric and certified UV protection clothing is enormous.

Unprotected
Regular Cotton T-Shirt
UPF 5
  • 80% of UV radiation penetrates the fabric
  • When wet, protection drops to UPF 3
  • Stretching opens gaps in the weave
  • No standardized UV test
VS
Certified
UVEEKAI UV Protection Clothing
UPF 80
  • 80x natural protection of the skin
  • Certified wet and stretched
  • Dense yarn structure blocks UV rays
  • Tested under UV STANDARD 801

Source: Crews et al. 2001 — "Evaluation of Sun Protection of Textiles"

05
Our Testing Institute

Hohenstein Institute

The world's most renowned testing body for textiles and UV protection. Every UVEEKAI product is independently certified here.

Notified Body
No. 0555 — EU-designated testing body
Boennigheim
Germany — since 1946, 1,000+ employees
25+ Years
UV research & textile testing
Co-Founder
of UV STANDARD 801
Test Report
24.1.10.0433-80-1
UPF Result
80
Hohenstein No.
0555
"UV STANDARD 801 takes realistic wearing conditions into account — it tests textiles wet, stretched and worn. This makes it the strictest UV textile standard worldwide." — Hohenstein Institute, Test Methodology UV STANDARD 801
"Only textiles that provide high UV protection even under worst-case conditions receive UV STANDARD 801 certification." — Hohenstein Institute, Certification Guidelines
UV STANDARD 801
Strictest UV test worldwide
CE 2016/425
EU PPE Regulation
Hohenstein 0555
Notified Body
PPE Cat. I
Personal Protective Equipment
EU
Regulation

EU Regulation 2016/425

UV protection clothing is classified under European law as Personal Protective Equipment (PPE) Category I. This means it is subject to the same strict requirements as safety helmets or protective gloves.

UVEEKAI meets all requirements of the EU regulation and goes beyond — with independent certification under the strictest available standard.

Our complete EU Declaration of Conformity is publicly available and documents compliance with all regulatory requirements.
"Personal protective equipment [...] must be designed and manufactured in such a way that, under the foreseeable conditions of use [...], it provides adequate protection against the risks." — Official Journal of the European Union, Regulation (EU) 2016/425, Article 5
CE 2016/425
CE Marking
Conformity proof for the EU market
EU Declaration of Conformity
Complete legal documentation
Notified Body 0555
Hohenstein as independent testing body
Technical Documentation
Test reports & material analyses
Certified brands

Which brands have UV STANDARD 801?

UV STANDARD 801 is awarded by the Hohenstein Institute to manufacturers whose textiles pass the real-world test — it is not a marketing label but a verifiable certificate with a registration number.

UVST
801

UVEEKAI — entire collection certified to UV STANDARD 801

German brand, entire collection certified (swim, sport & everyday wear for women, men & kids) — consistently UPF 80, tested at the Hohenstein Institute (test no. 24.1.10.0433-80-1).

Note: UV STANDARD 801 is also carried by other manufacturers. Always look for the registration number and the Hohenstein test mark when buying.
FAQ

Frequently asked questions about UV STANDARD 801

Which brands are certified to UV STANDARD 801?

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.

What exactly does UV STANDARD 801 mean?

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.

What is the role of the Hohenstein Institute?

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 test number (24.1.10.0433-80-1).

What UV protection does UVEEKAI clothing offer?

Every UVEEKAI piece reaches UPF 80 — the highest level on the UV STANDARD 801 scale. Only a fraction of UV radiation reaches the skin, and that protection lasts even when wet and after many washes.

Is there UV STANDARD 801 clothing for women?

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

What does UPF 80 mean?

UPF (Ultraviolet Protection Factor) shows how much UV radiation a fabric blocks. UPF 80 is the highest level on the UV STANDARD 801 scale: only one-eightieth of UV radiation passes through — over 98% is blocked.

What UV protection clothing is available for women and men?

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.
801
UV STANDARD 801 Collection
UPF 80 certified

Ready for the Highest UV Protection?

Discover our UV STANDARD 801 certified collection — designed for maximum protection under real conditions.

Discover Collection EU Declaration of Conformity
Important Notice
UV protection clothing does not replace comprehensive sun protection. We additionally recommend:
  • Sunscreen on uncovered skin (minimum SPF 30)
  • Avoid direct midday sun (11 AM – 3 PM)
  • Wear a sun hat and sunglasses
  • Regular skin cancer screening
Sources & References
  • 1 Hohenstein Institute — UV STANDARD 801: Test Methodology and Certification Guidelines. hohenstein.com
  • 2 Federal Office for Radiation Protection (BfS) — UV Radiation and Skin Protection. bfs.de
  • 3 Regulation (EU) 2016/425 of the European Parliament — Personal Protective Equipment. Official Journal of the EU.
  • 4 Crews, P.C., Kachman, S. & Beyer, A.G. (2001). Influences on UPF of Undyed and Dyed Fabrics. AATCC Review.
  • 5 Gambichler, T. et al. (2006). Ultraviolet Protection by Summer Textiles. British Journal of Dermatology.
  • 6 EN 13758-1:2006 — Protective Properties Against Solar UV Radiation (Test Methods). CEN Standards.
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