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The Story Behind The Baselayer

Under Armour created HeatGear to solve a simple but frustrating problem for athletes: heavy, sweat soaked layers that slow you down during warm weather training. The goal was to build a baselayer that dries fast, stays light, and feels almost invisible on the body.

HeatGear is designed to disappear once you start moving, helping athletes stay focused on effort instead of discomfort.

Eliminates Distractions: Moisture is pulled off the skin quickly, preventing the heavy, clingy feeling that comes with traditional fabrics.

Locks You In: The compression fit supports muscles without feeling restrictive or limiting movement.

Fast Drying Performance: HeatGear manages sweat efficiently so you can stay cooler for longer sessions.

How HeatGear Technology Works

HeatGear is engineered as a full cooling system rather than just a tight layer.

Sweat Wicking Fabric: The material pulls moisture away from the skin and spreads it across the surface so it can evaporate quickly.

Four Way Stretch Construction: The fabric stretches in every direction to move naturally with your body while maintaining a supportive fit.

Lightweight Breathability: Even long sleeve HeatGear pieces are designed to feel light and airy to reduce overheating during intense effort.

Who HeatGear Compression Is Built For

HeatGear compression is ideal for athletes training in warm or hot environments.

Summer Training: Frequently used in football, soccer, baseball, track, and outdoor practices where heat management is critical.

High Intensity Gym Work: Well suited for lifting, conditioning, and interval training where sweat buildup is high.

Team Use: Commonly worn as a unified baselayer under pads, jerseys, or practice gear for a clean, professional look.

HeatGear Vs ColdGear Vs AllSeasonGear

Under Armour designs baselayers for different temperature ranges and training conditions.

  • HeatGear: Built to keep you cool, dry, and light in warm and hot weather.
  • ColdGear: Designed with dual layer construction to retain heat and manage moisture in cold conditions.
  • AllSeasonGear: Created for moderate temperatures where neither extreme cooling nor insulation is required.

Choosing the right baselayer ensures comfort and performance throughout the year.

HeatGear Vs ColdGear Vs AllSeasonGear

Under Armour designs baselayers for different temperature ranges and training conditions.

HeatGear: Built to keep you cool, dry, and light in warm and hot weather.

ColdGear: Designed with dual layer construction to retain heat and manage moisture in cold conditions.

AllSeasonGear: Created for moderate temperatures where neither extreme cooling nor insulation is required.

Choosing the right baselayer ensures comfort and performance throughout the year.

Keeping Your HeatGear Fresh

Proper care helps maintain elasticity, fit, and sweat wicking performance.

  • Washing: Machine wash cold with similar colors to protect fabric performance.
  • Avoid Softeners: Fabric softeners can clog moisture wicking fibers and reduce effectiveness.
  • Drying: Tumble dry on low heat or hang dry to preserve stretch and compression.
  • Layering Tip: HeatGear should always be worn directly against the skin for best cooling results.

Train Harder, Stay Cooler

You do not back off just because the temperature rises. Under Armour HeatGear is built to match that mindset, keeping you cool, dry, and supported through every rep and every session. Explore the HeatGear collection and choose the compression that helps you stay focused when conditions get tough.

Frequently Asked Questions About Under Armour HeatGear

What is Under Armour HeatGear?

Under Armour HeatGear is a moisture-wicking baselayer and apparel line designed for hot weather and high-intensity training. The fabric is engineered to keep you cool, dry, and light by pulling sweat away from your skin and allowing it to evaporate quickly. HeatGear products include compression shirts, fitted tops, shorts, leggings, and underwear built to wear under your uniform or on their own during workouts.

When should I wear Under Armour HeatGear?

HeatGear is ideal for warm-weather training, summer sports seasons, indoor workouts, and any time you expect to sweat heavily. It works as a standalone training top or as a baselayer under your jersey or uniform to keep sweat managed and reduce chafing. Many athletes wear HeatGear year-round for indoor activities like gym sessions and basketball. The lightweight compression also provides a supportive feel that helps reduce muscle fatigue during long practices.

What is the difference between Under Armour HeatGear compression and fitted fits?

HeatGear Compression fits tight against your skin like a second layer, providing muscle support, improved blood flow, and reduced vibration during intense activity. HeatGear Fitted sits close to the body without the squeeze of compression, offering the same moisture-wicking performance with more freedom of movement. Compression is popular for baselayer use under uniforms, while fitted works well as a standalone training top. Both use the same HeatGear fabric technology for cooling and sweat management.

Under Armour HeatGear vs Nike Dri-FIT for hot weather workouts, which is better?

Both HeatGear and Dri-FIT are excellent moisture-wicking technologies designed for warm conditions. HeatGear's strength is its compression options, which provide muscle support alongside cooling, making it a favorite for football, baseball, and training baselayers. Nike Dri-FIT offers a wider variety of casual and lifestyle-oriented pieces. If you need true compression baselayer gear, Under Armour HeatGear is the stronger choice. For general workout tops and casual athletic wear, both perform comparably.

How do I wash Under Armour HeatGear to keep it performing well?

Machine wash HeatGear on cold with like colors and avoid fabric softener, which clogs the moisture-wicking fibers. Tumble dry on low or hang dry for best results. Do not iron or dry clean HeatGear products, as the heat can damage the performance fabric. Washing after every use is recommended since body oils and dried sweat can gradually reduce the fabric's ability to wick moisture effectively.