Up your gym-kit game with the new UAS Under Armour Sportswear line of sleek exercise staples.

You may already be familiar with Under Armour as a purveyor of high-quality performance-wear. If so, get ready to readjust that perception slightly. As of this season, the brand (whose moisture-wicking Heatgear and muscle-supporting compression gear accompanies many a member of the MR PORTER team to the gym) is launching UAS, a more lifestyle-focused range of sportswear designed by none other than Mr Tim Coppens, the Belgian-born, New-York based designer whose streetwise and sport-inflected designs are among those that have made the idea of “athleisure” a key concept in the modern male wardrobe. As you might expect from the partnership, the collection is a sleek range of minimal sportswear staples, cut to flatter and packed with stylish details. Scroll down to discover some of our favourite pieces from those arriving today on MR PORTER.

The Coxswain jacket from UAS has all the features you might expect from a garment of that title – it’s water-resistant, has taped seams, and is designed to fit close to the skin. Perfect gear, in other words, for the little guy that sits in a rowing boat, manning the rudder and screaming at his crew. That doesn’t mean it’s a one-use garment, though: in fact, its pleasing, minimal design, subtle burgundy colour and neat graphic stripes mean it’s perfect as a light shell jacket for city wear when the weather turns wet. Pair it with UAS’s water-resistant tote bag and you have yourself a stylish solution for a commute in adverse conditions.

This tactile merino wool T-shirt from UAS takes the brand’s performance expertise and applies it to that key discipline we could all spend more time training at: leisure. Flatlock seams maximise comfort, while the lightweight fibres of the wool have an exceptionally pleasing effect against the skin. Wear it with a pair of the brand’s shell-panelled sweatpants (which come in a wool-cotton mix and are tailored for a particularly flattering fit) and consider yourself the picture of modern relaxation.

These shell Fieldhouse trousers from UAS are perfect errand-wear: they’re light, waterproof and have zippable pockets in which to keep your keys, smartphone and whatever valuable things you might need to bring with you to nip out to the shops. Stay light on your feet (and monochromatically sleek) by wearing them with a pair of the brand’s “Run Fit” sneakers, which come with a breathable jersey tongue and springy Charged Cushion insole.