Guide

What to Wear to the Gym: The Technical Guide | Leone 1947

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Dress for training, not to be seen

When asking how to dress for the gym or what to wear to the gym, it's easy to start with the wrong question: "What looks good on me?" In reality, after a few weeks or a few years of training, the perspective completely changes. Those who train consistently choose garments that don't distract during a set, remain comfortable even after forty minutes, and continue to perform their function when sweat, fatigue, and repetitive movements truly put fabrics and seams to the test.

Gym apparel is therefore not just an aesthetic matter, but also a technical one. Four criteria are sufficient to choose the right garments.

  • Breathability: The garment must manage sweat and promote moisture wicking, not turn into a sponge.
  • Freedom of movement: Shoulders, hips, and knees must complete the movement without artificial tension.
  • Durability: Fabric, seams, and elastic must withstand friction, frequent sessions, and repeated washes.
  • Support: Where needed, the garment must stabilize without excessive compression.

In combat sports, these aspects are essential. A fabric heavy with sweat can compromise grip; shorts that pull at the hip can limit kicking; an aggressive seam becomes a problem in ground work. For over 75 years, Leone 1947 has worked on these needs. The same experience is now transferred to the Activewear line, designed to support real training: function before appearance.

Gym apparel fabrics: what works and what makes you sweat badly

The material determines how a garment reacts to heat, sweat, and movement. To understand how to dress for the gym, it's not enough to just read "sport" on the label: you need to know the actual function of the fabric.

Cotton - useful before and after, less so during an intense session

It's soft and comfortable, but it absorbs sweat and tends to retain it. During an intense session, it can become heavy, dry slowly, and increase the sensation of cold during breaks. It remains suitable for pre and post-workout or low-intensity activities.

Technical polyester - moisture management

Technical polyester is used in activewear because it promotes moisture transfer from the skin to the outer surface of the fabric, where it can evaporate more quickly. It is a consistent choice when sweating is high and the garment needs to dry quickly.

In the Leone 1947 line, polyester is present both pure and in blends, depending on the level of elasticity and stability required by the garment.

Elastane and spandex - elasticity and shape recovery

Elastane allows the fabric to stretch and recover its shape. It is particularly useful in leggings, tops, and tight shorts, where the garment must accommodate squats, lunges, rotations, and changes of direction without slipping or deforming.

Be careful, however: tight does not mean restrictive. A correct garment follows the body without limiting breathing, joints, or the range of motion.

Nylon - abrasion resistance

Nylon is suitable for garments subject to frequent rubbing because it offers good mechanical resistance. Its function becomes useful in ground work, exercises with continuous contact with benches and equipment, or in points where the fabric is most stressed.

Dry Mesh and Cool Touch in the Leone 1947 line

The fabric construction matters as much as the fiber. Dry Mesh technology, used in Leone 1947 tank tops, promotes ventilation in areas most exposed to heat. The Cool Touch solution of the DNA Leggings is designed to offer a cooler sensation on contact with the skin.

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How to dress for the gym: MEN

Men's sports apparel Leone 1947 for the gym

To understand how to dress for the gym, you need to start with the type of workout planned. The choice between a tank top, t-shirt, shorts, or long pants doesn't depend on style, but on joint freedom, temperature, and contact with equipment.

Upper body

A technical tank top leaves the shoulders and shoulder blades free and is suitable for pull-ups, overhead presses, Olympic exercises, and sessions in warm environments. A technical t-shirt offers more coverage and can be more practical on shared benches and machines. A compromise is the sleeveless shirt, which maintains good freedom in the shoulders without completely exposing the upper body.

The DNA line is an example, with tank tops, t-shirts, and sleeveless shirts designed to accompany movement; for more intense sessions, the Logo Dry Mesh Tank Top promotes greater ventilation.

Lower body

Technical shorts are the most versatile solution for strength training, functional training, and circuits. They must allow for full hip and knee flexion without pulling at the groin or bunching up behind the leg.

Leggings or long pants are useful in colder rooms, for ground work, or as a tight layer under shorts. In any case, the fit must remain stable without hindering squats or lunges.

Outer layer

Sweatshirts and tracksuits are especially useful for warm-up and post-workout. After training, the body can cool down quickly: a light layer helps prevent exposure to damp clothing.

The rule is simple: tight where stability is needed, looser where freedom is needed. Never the other way around.

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How to dress for the gym: WOMEN

Leone 1947 women's activewear: top and leggings

To understand how to dress for the gym, in addition to breathability and freedom of movement, careful consideration must be given to support. This is a technical function and must be chosen based on the activity's impact, not on aesthetics.

Top and sports bra

The level of support must follow the type of training:

  • Light or medium support: yoga, mobility, weights, and controlled ground work.
  • Medium or high support: dynamic circuits and cardio.
  • High support: running, jumping rope, plyometrics, and combat sports.

Insufficient support can increase discomfort during movement. The opposite excess is also a mistake: a chest band that is too tight can make breathing less comfortable. The garment must support without restricting.

Leggings or shorts

Leggings offer stability, coverage, and freedom of movement. Before choosing them, it is useful to perform a deep squat: the fabric should not become transparent, roll down at the waist, or limit flexion.

Shorts are cooler and are recommended when less fabric on the leg is preferred. The choice depends on the temperature, the type of exercise, and the desired level of coverage.

Upper body and fit

Tank tops, tops, and technical t-shirts must allow for full arm elevation without riding up, twisting, or creating tension on the shoulders. The correct size is one that allows for complete movement, not one that compresses the most.

The Leone 1947 Activewear line includes the DNA Top, DNA Tank Top, and DNA Cool Touch Leggings, available in sizes from XXS to XXL.

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What to bring to the gym: the gym bag checklist

Knowing what to bring to the gym prevents problems with changing, hygiene, and post-workout recovery. The gym bag should contain only what is truly needed, without unnecessary accessories.

  • Complete change of clothes: t-shirt or tank top, underwear, dry shorts or leggings.
  • Towel: often mandatory by gym rules and always useful on benches and shared surfaces.
  • Water bottle: to keep handy during the session.

    Hydration impacts performance more than you might think.

  • Dedicated shoes: not the ones used to get to the gym.
  • Flip-flops: necessary if you use showers and changing rooms.
  • Gym gloves: optional, but useful for those who often work with free weights. You can consult our catalog of gym gloves and other accessories.
  • Bag or separate compartment: to isolate wet clothing from the rest of your gear. 

A suitable gym bag should be spacious enough to hold your change of clothes without compressing everything into one space. Managing wet items is not a minor detail: leaving damp clothes enclosed with accessories promotes odors and makes drying more difficult. Upon returning home, air out the contents immediately and wash technical garments according to the instructions on the label. 

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The most common mistakes with gym wear

Training with a cotton t-shirt during intense sessions

Problem: The fabric absorbs sweat, becomes heavy, and stays damp.

Correction: Use a technical polyester or breathable blend t-shirt when sweating heavily.

Wearing clothes that are too loose

Problem: The fabric can get caught on equipment and makes it harder to control posture during exercise.

Correction: Choose a fit that allows for movement without creating unnecessary bulk.

Choosing clothes that are too tight

Problem: Breathing and joints can feel restricted.

Correction: Test the garment with squats, lunges, torso rotations, and overhead presses. Tight doesn't mean constricted.

Using a sports bra with insufficient support

Problem: Can increase discomfort during running, jumping, and other movements.

Correction: Choose the support level based on the activity's impact and ensure the chest band does not hinder breathing.

Wearing shoes not suitable for the workout

Problem: A heavily cushioned shoe can be unstable under load, while a stiff, flat shoe is not necessarily suitable for prolonged cardio.

Correction: Choose the sole based on the type of session: stable for weights, cushioned for cardio, with grip and lateral support for HIIT and changes of direction.

Staying in wet clothes after training

Problem: The body cools down rapidly and increases friction on the skin.

Correction: Bring a complete change of clothes or wear a dry layer immediately after the session.

Ignoring seams and elastic bands

Problem: In long sessions, chafing and irritation can occur.

Correction: Check flat seams, edges, and pressure points before purchasing.

Leone 1947 Activewear line: the gym according to fighters

Since 1947, Leone 1947 has been building equipment for disciplines where every technical detail is put to the test. In combat sports, a garment that absorbs too much sweat, slips, or limits mobility is not simply uncomfortable: it interferes with performance.

The Activewear line stems from this experience and applies the same criteria to the gym. The DNA collection includes tank tops, tops, t-shirts, shorts, pants, Cool Touch leggings, and sweatshirts, with options for men, women, and unisex.

It's not about choosing a garment because it "looks sporty." It's about ensuring it manages moisture, supports movement, and withstands frequent use. The test isn't in front of the mirror: it's during the last set, when the fabric must remain still and technique cannot afford distractions.

This is the point of contact between the gym and combat sports: clothing must work with the athlete, not demand adaptation from them.

FAQ

How should one dress for the first time at the gym?

For the first session, three functional items are enough: a breathable technical shirt, shorts or leggings that allow for full movement, and shoes suitable for the type of workout. The rest can be added based on the discipline, the room temperature, and the frequency of workouts.

Is a cotton t-shirt or a technical one better?

For intense training, a technical polyester t-shirt is generally more suitable. Cotton absorbs sweat and tends to retain it, becoming heavier and drying slowly. It can, however, work for pre- and post-workout or low-intensity sessions.

Leggings or shorts?

It depends on the workout and the temperature. Leggings offer stability, coverage, and reduced chafing, making them useful for ground work and cooler environments. Shorts are lighter and more versatile for hot or very dynamic sessions.

What kind of sports bra is needed for the gym?

The level of support should follow the impact of the activity: light or medium for yoga, mobility, and weights; medium or high for circuits and cardio; high for running, jump rope, and combat sports. The garment should limit movement without excessively compressing the chest.

What should I put in my gym bag?

Bring a full change of clothes, a towel, a water bottle, dedicated shoes, shower sandals, and, if you need them, gym gloves and other accessories. A separate compartment or bag to isolate wet clothing is also useful.

Is different clothing needed for combat sports?

Partially. Breathability, freedom of movement, and fit remain common criteria, but specific practice requires dedicated garments such as rashguards, boxing or kickboxing shorts, and protections consistent with the discipline. Activewear primarily covers athletic preparation, warm-up, and general gym work.