What you wear changes the way you train

It is not a question of vanity. It is neuropsychology.

In 2012, researchers Adam and Galinsky formalized the concept of "enclothed cognition": the clothes we wear directly influence cognitive processes and behavior. In other words, what we wear changes the way we think, and therefore the way we act.

In a sports context, the implications are concrete. An outfit that feels good, fitted, understated, and adapted to the effort, amplifies self-confidence and the level of engagement.

Conversely, an uncomfortable outfit creates a constant distraction: you think about what is pulling, what is slipping, what is see-through, instead of thinking about the effort.

Materials: where it all really happens

Before the cut, before the color, before everything, comes the material. It determines whether a piece will keep its promises during exercise, after 50 washes, and in two years' time.

Polyamide: the benchmark in technical sportswear. Soft against the skin, naturally stretchy, resistant to abrasion and repeated wash cycles. It is the foundation of any serious garment.

Elastane: always used to complement polyamide, at 15 to 20%. It ensures the fabric snaps back after every movement, which determines if your leggings will hold their shape after six months of wear.

Recycled materials: rPA, rPET. They offer technical performance comparable to virgin materials, with a reduced environmental footprint. A relevant criterion for pieces designed to last.

What to avoid

• 100% Cotton: it absorbs perspiration, gets heavy during exercise, and takes a long time to dry.
• Low-end polyester: it retains odors, loses its shape quickly, and pills after a few washes.
• Acrylic: it is not breathable and has a very short lifespan for sports use.

Grammage: concrete benchmarks

• Running or gym leggings: 220 to 280 GSM to guarantee opacity and muscle support.
• Tops and tank tops: 160 to 220 GSM to maintain lightness and breathability.

Leggings under 200 GSM will almost systematically have issues with transparency in a squat position or while running, regardless of their color.

Running: choosing your running outfit with precision

Running is the most demanding discipline for textiles. Every detail counts over time, and the flaws of a poor piece are revealed mile after mile.

Leggings or shorts: the right logic for choosing

Below 15°C (59°F), leggings are essential. They maintain muscle warmth and reduce the risk of strain on long runs. Above 20°C (68°F), shorts take over for lightness and ventilation. In between, it is a matter of personal preference and the intensity of the effort.

For running leggings, four non-negotiable criteria:

• Guaranteed opacity: minimum 240 GSM, tested in a squat position.
• Flat seams: essential to avoid chafing over long distances.
• High waist: it stabilizes the pelvis and eliminates constant adjustments.
• Light compression: it improves proprioception and venous return during prolonged efforts.

The running top

A running top or tank top must wick away perspiration, not absorb it. An absorbent material becomes heavy during exercise and prolongs the feeling of moisture on the skin. A technical material with rapid wicking transports sweat to the outside of the fabric so that it can evaporate.

Breathable inserts on the back and under the arms are not aesthetic details. They are active ventilation zones.

The gym: HIIT and muscle strengthening, two different approaches

People often confuse the two. Yet their technical requirements are distinct.

For HIIT

HIIT generates intense perspiration in a short time, with explosive and multidirectional movements. The priorities are clear: maximum lightness, rapid wicking, total freedom of movement.

A lightweight technical short paired with a breathable tank top is the most effective combination. Avoid compression pieces that limit range of motion or generate excessive heat.

For muscle strengthening

Strengthening requires a different approach. Light compression improves proprioception, awareness of the body's position in space, which is directly useful for technical exercises like squats, deadlifts, or hip thrusts.

Long high-waisted leggings stabilize the pelvis and support heavy loads. A fitted T-shirt allows you to observe alignment in the mirror, which is not trivial when technique determines performance and injury prevention.

Common criteria for both practices:

• Friction resistance: bars, machines, and mats stress fabric differently than running.
• Guaranteed opacity in all positions: floor exercises and squats are unforgiving.
• Waistband stability: it must not slide down during exercise, regardless of the range of motion.

Elegance as a technical criterion: the codes that structure an outfit

Elegance in sportswear is not about the superficial. It is about coherence between the garment, the body, and the movement. And it relies on precise choices.

The color palette

Start with a neutral base: black, charcoal gray, navy, beige, off-white. These shades naturally coordinate with each other, transcend the seasons, and do not age. A color accent can be used, but it is best kept minimal.

Coordinated sets

Leggings and a top in the same material or color immediately create a structured silhouette. It is one of the most effective codes of premium sportswear, and one of the simplest to apply.

The fit

Neither too tight nor too loose. A well-fitted cut follows the lines of the body in motion without restricting. A garment that is too loose loses its sharpness; a garment that is too tight highlights the effort rather than accompanying it.

The finishes

Invisible flat seams, discreet or absent logos, clean edges: these are the details that distinguish a durable piece from one that is forgotten after a few months. They aren't seen, which is precisely why they matter.

The gym-to-street transition

A well-chosen outfit goes through the day effortlessly. The key: pieces with refined finishes, an understated palette, and cuts that don't shout about their intended use. Technical leggings in a neutral color paired with a bomber jacket or trench coat become something more than just gym wear.

AERTH pieces: where durability meets elegance

At AERTH, our stance is simple: pieces designed to last, both technically and aesthetically. Made in Portugal and Oeko-Tex certified, they meet the requirements of performance without sacrificing visual coherence.

No intrusive logos. No trend-chasing. Meticulous cuts, materials selected for their longevity, and colors that integrate into a wider wardrobe.