Technical details
Open Accordion
Size + fit
Open Accordion

Fit guide: The Planet Earth Baselayer is slim fitting. If you’re on the borderline between two chest sizes or would like a more relaxed fit as shown in the photos, we recommend going for the size up.

Model wears: Runner Tyler Maher is 6ft 4 / 193cm with a 38 inch / 97cm chest. Tyler has an athletic build and is wearing the Planet Earth Baselayer in size XL.

Personalised advice: See our size guide for more advice on sizing, or you can ask us for personalised sizing advice here.

Returns and exchanges: Don’t worry if you order something and it doesn’t fit – we have a free, no hassle 30 day return and exchange period.

Fits chest83-9091-9899-106107-114115-122123-130
Fits waist71-7676-8181-8686-9191-9696-101
Fits chest33-3636-3939-4242-4545-4848-51
Fits waist28-3030-3232-3434-3636-3838-40
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Planet Earth Baselayer Khaki

You can wear it from the Arctic to the office

The Planet Earth Baselayer adapts to life in the city as easily as it thrives running, climbing or skiing in the mountains. We built a high integrated collar that can be pulled up - so whether you’re in the Arctic, the desert, or the city, you can protect your face from the heat, the cold and the weather. When you’re inside you can wear the baselayer with the collar down like a regular top, but still be ready for somewhere a little more hostile in a second.

Planet Earth Baselayer Khaki

Wear it as part of our Planet Earth Merino system

To build a baselayer that can work anywhere on Earth you need to start with an exceptional material, so we built ours from an ultra-fine Australian Merino. The baselayer is part of our Planet Earth Merino system – a hoodie, baselayer and t shirt built from Merino blends that are designed to work together. With the baselayer under the hoodie, you’ll have Merino next to your skin, and Merino exposed to the elements, but with an ultra-soft layer of fleece from the underside of the hoodie trapped in between for extra warmth.

Planet Earth Baselayer Khaki

How Merino keeps you warm in the cold

Staying warm is all about trapping as many pockets of air next to your body as possible and that’s what Merino is built for. Every Merino fibre is hollow which means you have millions of air pockets trapped next to your skin. And as the natural curl of wool fibres traps more air than straight fibres, the microscopic texture of the fabric itself will also retain heat. The baselayer’s engineering comes into its own in cold terrain. It’s soft, stretchy and high wicking so you can wear it on its own if you’re looking to go fast and light.

Planet Earth Baselayer Khaki

Fast drying and insulating even when wet

The outside of every Merino fibre is covered in a natural wax coating which makes it water repellent when you’re outside. At the same time the Merino acts like a sponge to soak up sweat and spread it over a massive surface area so that it evaporates at high speed. And as Merino can absorb over 30% of its own weight in water and still feel dry, you’ll stay warm and insulated.

Planet Earth Baselayer Khaki

Merino keeps you cool in the heat

Merino also stops you overheating in higher temperatures as it simply releases its warmth if you’re getting too hot. Merino wool has to keep sheep cool even when the temperature goes over 30°C, so the Merino fibre naturally absorbs the moisture from sweat and disperses it to start releasing heat.

Planet Earth Baselayer Khaki

Stretches with you, whatever you’re doing

We built our fabric from scratch in Portugal, blending elastane with one of the softest substances in the world. These same Merino fibres are naturally elastic which means the Planet Earth Baselayer will stretch with you whatever you’re doing. They can also be pulled with a lot of sudden force without breaking and still return to their original shape.

Planet Earth Baselayer Khaki

The collar has 8 laser-cut and welded vents

The high collar is built for speed and practicality. You’ll find 8 laser-cut and welded breathing holes over your mouth, and a pull tab on the rim of the collar for pulling it up and down. The underside of the Merino is soft on your face and fast drying. The collar is highly elastic to fit different face shapes, so the second you want your mouth and nose protected, you can whip it up over your face.

Planet Earth Baselayer Khaki

It’s hard to make a Planet Earth Baselayer smell

It’s not sweat that smells, or even the clothes themselves, it’s the build-up of bacteria on the surface of the clothes. Merino is naturally odour resistant – odour molecules are absorbed and locked into the centre of the fibre of the Merino so you simply can’t smell them. They’re then released when you wash the baselayer.

Planet Earth Baselayer Khaki

Why our Merino wool comes from Australia

Flocks of Merino sheep have been kept for their wool ever since the 12th century. Bred by the Spanish royal family they were so highly prized that taking one out of the country would have you killed. And when the first 26 sheep from the royal flock sailed to Australia in 1797, even the ship’s crew gave up their cabins so the sheep could have them. While half the sheep died on the crossing, the rest became the start of a breeding line that would go on to dominate modern Merino production.

Planet Earth Baselayer Khaki

Built for wherever you call home

There are over 510 million square kilometres on the surface of Earth, and our Planet Earth gear is designed to work in every single one of them. Alongside our Planet Earth Baselayers you’ll find Planet Earth Pants and Planet Earth Shirts. With magnetic storm flaps, reinforced anti-mosquito collars, hidden passport pockets for hostile environments, shatterproof buttons and built in air-con, they’re built to work in every mangrove swamp, arctic plateau, desert or office on Earth.

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