What Should I Wear to the Gym? Men’s Gym Outfits, Underwear and Training Style

Men should wear gym clothes that stay comfortable and out of the way while they train: supportive underwear, a tank top or T-shirt that allows upper-body movement, shorts or pants suited to the workout, socks and footwear appropriate for the activity. Start with function, then use fit, proportion and color to make the outfit feel intentional.

You do not need a different wardrobe for every workout, but the same outfit will not be equally practical for lifting, cardio and high-movement training. Build the look from the base layer up and check everything while moving—not only while standing in front of a mirror.

What Should Men Wear to the Gym?

A simple men’s gym outfit usually needs five pieces:

• Underwear that stays stable without excessive compression or constant adjustment.
• A tank top or T-shirt that lets your shoulders and arms move comfortably.
• Shorts or training pants that give your hips and legs enough freedom for the session.
• Socks that work comfortably with your footwear.
• Shoes appropriate to the type of training you plan to do.

That is the functional base. From there, fit, color and proportion determine whether the outfit also looks considered.

If you are building the complete outfit from Gigo pieces, start with the Gigo Men’s Sportswear collection and then choose the underwear separately according to the support and coverage you prefer.

Start With the Underwear

The underwear is the layer that sits closest to the body, so it needs to work before the shorts or pants go on.

For training, check four areas:

• the waistband stays in position without digging in;
• the pouch supports without uncomfortable compression;
• leg openings or straps remain stable during movement;
• and the garment does not require repeated adjustment.

There is no single underwear cut that every man needs to wear to the gym. A brief, trunk or jockstrap can all be reasonable options when the individual garment fits correctly and works with the movements you plan to perform.

For a more detailed comparison focused specifically on training conditions, read Men’s Athletic Underwear: What Works Best for Heat, Movement and Support.

Briefs

Briefs leave the upper thigh uncovered, which removes the short fabric leg found on trunks. That can make them an easy base when you do not want another layer of fabric extending down the thigh.

Browse the Gigo Men’s Briefs collection to compare different front constructions, rises and leg openings.

Trunks

Trunks add a short leg around the upper thigh. If you prefer the extra coverage, check that the leg does not repeatedly roll or ride upward once you squat, sit or walk.

Compare options in the Gigo Men’s Trunks collection.

Jockstraps

A jockstrap combines a front pouch and waistband with an open-back strap construction. Some men prefer that lower-coverage silhouette for training, while others prefer a brief or trunk.

Do not choose a jockstrap simply because it looks athletic. Check the waistband, pouch and straps while moving and decide whether that construction works for you.

Explore the Gigo Men’s Jockstraps collection.

Choose the Top by Movement and Fit

A tank top or T-shirt should allow the upper body to move without repeatedly pulling at the shoulders, chest or arm openings.

For a tank, check that:

• the shoulder area sits cleanly;
• the armholes allow normal movement;
• the chest does not feel restricted;
• the body does not hang so loosely that it interferes with movement;
• and the hem stays practical for the exercises you plan to do.

A closer fit can create a sharper silhouette, while a looser fit can give you more space. Neither is automatically better. The top still needs to function when your arms move overhead, forward and across your body.

For the detailed fit check, read How Men’s Tank Tops Should Fit for a Cleaner, More Athletic Look.

You can compare current styles in the Gigo Men’s Tank Tops collection.

How Should Gym Shorts Fit?

Gym shorts should stay secure at the waist while allowing the legs and hips to move through the exercises you actually perform.

Check:

• waistband stability;
• room through the seat and thigh;
• hem placement;
• whether the short shifts during squats or lunges;
• and whether pockets or other details interfere with the movement you are doing.

Length is partly a styling decision, but it also changes how much fabric surrounds the thigh.

A shorter short can expose more of the leg and create less fabric below the upper thigh. A longer short provides more coverage. The useful choice is the one that gives you the proportion and movement you want without constant adjustment.

For a complete short-specific guide, read How to Choose Men’s Shorts for Fit, Movement and Proportion.

Browse the Gigo Men’s Shorts collection to compare different lengths and silhouettes.

What to Wear for Weight Training

For a typical strength session, choose clothing that lets you bend, squat, press and pull without getting in the way.

A simple formula is:

• well-fitting underwear;
• a tank or T-shirt;
• shorts or training pants with comfortable hip and leg movement;
• socks;
• and footwear suitable for the exercises you are doing.

Very loose fabric can become distracting around equipment, while clothing that is excessively tight can restrict or distract from movement. Check the outfit with the actual range of motion you expect to use.

What to Wear for Cardio

Cardio can involve repeated movement for a longer period, so clothing stability becomes especially noticeable.

Check that:

• the underwear stays in place;
• the top does not require frequent repositioning;
• the short does not repeatedly climb or sag;
• and the footwear is appropriate for the cardio activity you selected.

A garment that feels fine during two minutes of standing can feel completely different after repeated steps, cycling movement or another sustained activity. Test the outfit in motion whenever possible.

What to Wear for HIIT or Functional Training

High-movement sessions make instability easy to notice because you may be combining squats, lunges, jumps, floor work and rapid changes of direction.

Prioritize pieces that remain where you put them.

A practical outfit can include:

• underwear that remains supported through repeated movement;
• a top that allows your arms and shoulders to move freely;
• shorts that stay secure around the waist;
• and training footwear suited to the activity and surface.

If one garment needs to be adjusted after every movement, change that piece before worrying about whether the colors match.

What to Wear on Leg Day

For exercises such as squats, lunges and leg presses, check the lower half of the outfit carefully.

Your underwear and shorts should work together rather than creating two competing layers around the thigh.

Before training:

1. Put on the complete outfit.
2. Perform a bodyweight squat.
3. Take a long step forward.
4. Sit down and stand again.
5. Notice which layer moves first.

If the underwear leg rolls before the short moves, check the underwear cut. If the outer short restricts the movement while the underwear stays stable, investigate the short instead.

Our guide to men’s underwear leg-opening fit can help when the pressure or ride-up begins around the thigh.

What Should You Wear Under Gym Shorts?

Wear underwear that provides the amount of coverage and support you prefer without creating unnecessary bulk or instability beneath the shorts.

The useful questions are:

• Does the underwear stay in position?
• Does the pouch feel comfortable?
• Do the underwear and short hems interfere with each other?
• Does the waistband remain comfortable beneath the shorts?
• Can you complete the movements without adjusting either layer?

If you wear trunks under shorts, the relationship between the two leg lengths deserves special attention. See Men’s Underwear Trunks Under Shorts: Fit, Ride-Up & Comfort for that specific combination.

Gym Clothes Should Be Fitted, Not Forced

Gym clothing does not need to be skin-tight to function, and loose clothing does not automatically mean more freedom.

Think in terms of controlled movement.

Your clothes should:

• stay reasonably stable;
• give the joints and muscles involved in the exercise room to move;
• avoid concentrated pressure;
• and not create so much excess fabric that you spend the workout managing it.

The correct balance depends on the garment and the activity.

Use the Correct Gigo Size Reference

Gigo currently uses different body measurements for upper- and lower-body garments.

• Underwear, shorts and pants: start with your waist measurement.
• Tanks, T-shirts and shirts: start with your chest measurement.

Use your body measurement rather than assuming that your usual letter size at another brand will be identical.

If your measurement falls between two Gigo sizes or exactly on a shared boundary, the current Gigo Size Guide recommends starting with the larger size.

After choosing the starting size, check the individual garment while moving because fabric and construction can make two styles in the same size feel different.

Use Color Without Overcomplicating the Outfit

Once the functional pieces are right, color is an easy way to make a gym outfit feel intentional.

You do not need every item to match. Use one of these simple approaches:

One lead color

Choose one stronger color in the tank or shorts and let black, gray, white or another neutral support it.

Repeat one accent

A waistband, trim or small detail can repeat a color from the upper or lower part of the outfit without creating a full matching set.

Monochrome

Use several pieces from the same color family and create contrast through fit, texture and proportion rather than adding another color.

For a deeper color-styling guide, read Men’s Underwear Color Combinations: Tanks, Briefs & Color Blocking.

Simple Men’s Gym Outfit Formulas

1. The straightforward first-gym outfit

• Brief or trunk.
• Comfortable tank or T-shirt.
• Mid-length short.
• Socks.
• Training footwear appropriate to the session.

This keeps the outfit simple while giving you enough information to learn what you prefer.

2. The tank-and-short outfit

• Underwear with the coverage you prefer.
• Fitted or shaped tank.
• Shorts with enough room for the planned workout.
• One repeated color or neutral base.

This works well when you want the tank and shorts to form the visible outfit rather than making the base layer the focus.

3. The jockstrap-based outfit

• Jockstrap that fits correctly at the waistband, pouch and straps.
• Tank or T-shirt.
• Shorts that work comfortably over the jockstrap.
• Training footwear appropriate to the session.

Choose this because you like the jockstrap construction—not because every gym workout requires one.

4. The all-black outfit

• Black underwear.
• Black tank or T-shirt.
• Black shorts or pants.
• One optional accent through trim, waistband or accessories.

If you want to build that look more deliberately, see Black Men’s Underwear: Building a Monochrome First Layer.

What Not to Wear to the Gym

Avoid garments that create a practical problem for the workout you are doing.

• Underwear that needs constant adjustment.
• A waistband or pouch that becomes uncomfortable during movement.
• Shorts that repeatedly sag, roll or restrict your stride.
• Tops that limit shoulder or arm movement.
• Loose details that interfere with equipment.
• Footwear that is inappropriate for the exercise or surface.

Also check the rules of the gym itself. Dress codes and footwear requirements can differ between facilities.

What Should Men Wear to the Gym for the First Time?

Keep the first outfit simple.

Wear underwear you already know fits comfortably, a top that gives you normal upper-body movement, shorts or pants that allow you to squat and sit comfortably, socks and suitable training shoes.

Your first gym visit is not the ideal moment to test several unfamiliar cuts at once. Once you know how the basic outfit behaves, you can experiment with shorter shorts, different tank fits, jockstraps, color combinations or other styling choices.

Frequently Asked Questions

What should men wear to the gym?

Wear supportive underwear, a tank or T-shirt that allows movement, shorts or training pants appropriate for the workout, socks and footwear suited to the activity.

Should gym clothes be tight or loose?

Neither extreme is automatically better. Choose clothing that stays stable without restricting movement or creating unnecessary excess fabric.

What underwear should men wear to the gym?

Briefs, trunks and jockstraps can all work when they fit correctly. Choose according to the coverage and support you prefer, then test the garment while walking, sitting and performing movements similar to your workout.

Can men wear jockstraps to the gym?

Yes. A jockstrap is one underwear option for men who prefer its pouch-and-strap construction and open back. It is not required for ordinary gym training, so compare it with briefs and trunks according to your fit preference.

Are tank tops good for the gym?

They can be when the cut allows comfortable shoulder and arm movement. Check the neckline, armholes, chest and body fit rather than assuming every tank is suitable simply because it is sleeveless.

What should I wear to the gym for the first time?

Start with a simple, familiar combination: comfortable underwear, a tank or T-shirt, shorts or training pants, socks and suitable athletic footwear. Learn what feels comfortable before experimenting with more specific silhouettes.

Should I wear shorts or pants to the gym?

Either can work. Choose according to the workout, temperature, coverage preference and the amount of movement you need. Test the garment with movements similar to your planned session.

How do I choose my Gigo gym clothing size?

Use the Gigo Size Guide. Lower-body garments use waist measurements and upper-body garments use chest measurements. If you fall between two Gigo sizes or on a shared boundary, start with the larger size.

Build the Gym Outfit From the Movement Up

A good men’s gym outfit does not need to be complicated. Start with underwear that stays comfortable, add a top and bottom that allow the movements you plan to perform, then choose the footwear and styling details around the session.

Once those pieces function together, use proportion and color to make the outfit look like yours. The goal is not to dress for the mirror and hope it works during training. Build an outfit that still works after you start moving.