Rezzella

For the planet

We believe clothing for a hotter world should be made only when it is wanted, packed in paper and worn for years. This page sets out what we do, and every fact on it links to its source.

The planet is getting hotter

The World Meteorological Organization’s State of the Global Climate 2025 found that 2025 was about 1.43 °C warmer than the 1850 to 1900 average, and that the eleven years from 2015 to 2025 were the eleven warmest on record.1

Much of the world already lives in strong sun for most of the year. Clothing should be made for the sun we actually live in.

Global temperature since 1880, as the difference from the 1951 to 1980 averageGlobal mean surface temperature for each year from 1880 to 2025, as the difference from the 1951 to 1980 average, in degrees Celsius. The early years sit below the average; 2025 was 1.18 °C above it and 2024 the warmest at 1.28 °C. The 12 most recent years, 2014 to 2025, are the 12 warmest since 1880, shown in red. Source: NASA Goddard Institute for Space Studies, GISTEMP v4, data.giss.nasa.gov/gistemp, fetched 4 November 2026.Global temperature since 1880Difference from the 1951 to 1980 average, in °C1951 to 1980 average+1.0 °C+0.5 °C0 °C18801920196020002025The 12 warmest yearssince 1880Source: NASA GISS, GISTEMP v4, fetched 4 November 2026
Each bar is one year, from 1880 to 2025, compared with the 1951 to 1980 average.2

Make only what is wanted

Much of the clothing industry still makes on a guess. The European Environment Agency puts the average share of textile products that go unsold at about 21%, and estimates that 4 to 9% of all textile products put on the market in Europe are destroyed before use.3

We make to order instead: Reserve for free → The run fills (50 pieces) → Pay when we confirm the date → Delivered in about four weeks.

Nothing is made until it is reserved, so nothing is wasted. What we make is what people asked for.

Made to guess versus made to orderMade to guess: a batch of 100 pieces is made before anyone asks, 79 sell and 21 are never sold. Made to order: reservations come first, then a run that matches them, so nothing is left over. The 21 of 100 never sold follows the European Environment Agency estimate that about 21% of textile products go unsold (European Environment Agency, 2024).Made to guessMade before anyone asksSoldNever soldMade to orderReserved firstNothing wastedMade to match
Made to guess: made before anyone asks, and what does not sell is left over. Made to order: reserved first, then made to match.

Paper, not plastic

Your piece arrives in a thin white paper box, wrapped in paper, with the UV card on top. We made the box to be kept and used again, not thrown away on the day it arrives.

Every part of the Rezzella box laid out from above: the base, the lid, the folder, tissue, sticker, seals, the card slot and the kraft mailer

Made to last

The most useful thing clothing can do for the planet is to be worn for a long time. We would rather you wear one piece for years than replace five.

Every piece has its care guide on its own page: wash cold, line dry, no bleach and no tumble dryer.

How to care for your pieces

It stays on

Clothing does not wash off into the sea. Some places now protect their reefs by law: Hawaii has banned the sale of sunscreens containing oxybenzone or octinoxate since 1 January 2021,4 and Palau has banned sunscreens it lists as toxic to reefs since 1 January 2020.5

What we will publish

The full lab report for our fabric. Our fabric goes to ARPANSA, Australia’s radiation protection agency, for testing to AS/NZS 4399 before the first run. The full report goes on the shirt test page. Until the report is published, we say only this: made to block the sun.

The care guide for every piece, on its own page. And the source for every fact we use, as on this page.

The shirt test

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