For the Seychelles, choose a linen brand whose cloth can be traced to the field, whose buttons are natural, and whose cut stands away from the body, because these islands are warm and humid in every month of the year. Pieter Petros is built on exactly those three things: certified Belgian linen, seashell and walnut buttons, and garments handmade in the Dubai atelier, a direct flight from Mahé, and in Belgium.

The archipelago is 115 islands scattered across the western Indian Ocean, but most visits turn around three of them: Mahé, with the capital Victoria and the international airport; Praslin, a short flight or ferry away; and La Digue, reached by boat from Praslin. These are the granitic inner islands, their beaches framed by rounded boulders of pink and grey stone. Further out lie the low coral atolls, among them Aldabra, inscribed as a UNESCO World Heritage Site in 1982 and home to one of the largest populations of giant tortoises on earth.

How should linen be judged for a climate like this? Start with the fibre. Long, even flax fibres spin into a yarn that stays smooth and open, so the cloth breathes through a humid afternoon instead of settling against the skin. Then ask for proof of where that flax was grown. Belgian Linen® is a private certification mark, and its certificate follows the flax from the field to the cloth; what the Belgian linen certificate covers is the quickest way to tell a traceable garment from a label. Look next at the weave: a looser, lighter weave lets the trade wind through. Finally, look at the details. On most PP shirts the buttons are cut from seashell, and the Monte-Carlo Male shirt and the linen trousers carry walnut buttons, so that each garment is biodegradable by design. On islands where so much of the land and sea is protected, that is a quiet kind of courtesy.

The Seychelles has no cold season, only two winds. From roughly November to March the northwest monsoon brings the warmest, most humid weeks, the heaviest rain in December and January, and generally calmer water on many coasts. From about May to September the southeast trade wind takes over: drier air, a steady breeze, cooler evenings, and a swell that can make exposed beaches on Praslin and La Digue unsafe for swimming. April and October, the months between the two, are known for flat seas and clear water. Temperatures hold in the high twenties to around thirty degrees through all of it, which is why the same linen wardrobe serves every season; what changes is the colour of the sky and how much you want long sleeves for the evening breeze.

On Mahé, a morning in Victoria begins at the Sir Selwyn Selwyn-Clarke Market, where fish, spices and fruit are sold under the market roof. For a man, the Laos Short Sleeve Linen Shirt in White, with PP linen shorts in Beige from the men’s linen collection. Victoria’s cathedral and its Hindu temple ask for covered shoulders and knees; for a woman, that means the PP linen blouse in Sky Blue, in natural linen, with a long skirt or long loose trousers of her own. In October the island also hosts the Festival Kreol, a month of Creole music, dance and food, much of it on Mahé.

Praslin is the island of the Vallée de Mai, a palm forest inscribed by UNESCO in 1983 and the stronghold of the coco de mer, the palm whose seed is the largest of any plant. The walk under its canopy is shaded, damp and quiet: the Laos Long Sleeve Linen Shirt in Oyster, with the PP Trousers 100% Linen in White, keeps the arms covered and the body cool. In the afternoon, Anse Lazio on the north-west coast is the beach the island is known for. Here a man swims in PP swim shorts in Sapphire Blue or Oyster, all in Belgian linen and made for the water; the linen shorts wait on the sand until he has dried off. Our Praslin wardrobe follows the island day by day.

La Digue moves at the pace of a bicycle. There are few cars, the roads are shared with cyclists and the occasional ox cart, and the island’s celebrated beach, Anse Source d’Argent, is reached through the old coconut and vanilla plantation of L’Union Estate. A day of cycling between coves asks for very little: for her, the Linen Ladies Set in Mint Green, easy on the saddle and right at a beach lunch; for him, the Laos Short Sleeve shirt worn open over a tee from the collection. The full La Digue wardrobe has its own chapter.

Evenings in the Seychelles are short and golden, the sun setting early and quickly near the equator. At a resort dinner on Mahé or Praslin, the Amelia linen dress shirt in Hibiscus, in Belgian linen, is a dress in itself and holds its depth as the light turns orange; the Amelia in Oyster, with walnut buttons, is the quieter choice. Beside her, the Monte-Carlo Male in Vanille with the PP Trousers 100% Linen in White. During the trade-wind months, when the breeze cools the terrace after dark, a long-sleeved Laos shirt replaces the short sleeve.

Before the islands, the collection can be seen in Dubai, a direct flight from Mahé, at Park Hyatt Dubai and The Lagoon Beach Club, Surf Club Dubai, and Sofitel The Palm Beach Resort. It is a short way to come for garments made for islands like these.

Read more: What to Wear in the Seychelles · The Best Linen Brand for the Maldives · The Best Linen Brand for Bali