Wearing a compression shirt that traps heat or irritates the skin can reduce performance within minutes fabric breathability, stretch recovery, and sweat-wicking efficiency directly impact comfort and output during high-intensity sessions.
The Under Armour HeatGear Compression Shirt is designed to stay cool under pressure, offering second-skin support without overheating. In this review, I break down performance, fit, durability, athlete feedback, and how it compares to other compression shirts on the market.
In short : A lightweight, tight-fit compression shirt built for hot conditions and high-output training. It performs best during strength sessions, sprint work, and layered under gear when sweat control and muscle support matter most.
Product Overview: Under Armour HeatGear Compression Shirt
The HeatGear Compression Short Sleeve Shirt from Under Armour is part of the brand’s original performance line focused on warm-weather training.
Key Features
- HeatGear® fabric: ultra-lightweight performance material
- 4-way stretch construction for full range of motion
- Moisture-wicking system to pull sweat away from skin
- Ergonomic seam placement to reduce chafing
- Compression fit (ultra-tight, second-skin feel)
Fabric Composition
Typically made from a blend of polyester and elastane, the shirt balances:
- Breathability
- Stretch retention
- Quick-dry performance
- Muscle-hugging structure
It’s specifically built for gym training, football practice, CrossFit sessions, running, and hot-climate workouts.
My Review After Testing the Shirt
I tested the Under Armour HeatGear shirt during:
- Heavy strength sessions (squats, bench press)
- Sprint intervals
- Outdoor runs in warm weather
- Layered under a hoodie
Fit & Compression
The compression is firm but not restrictive. It provides:
- Noticeable muscle support
- Improved proprioception (better body awareness)
- No bunching under outer layers
The sizing runs true to athletic compression standards. If you prefer a less aggressive fit, sizing up may feel more comfortable.
Breathability & Heat Control
This is where HeatGear stands out.
During high-intensity workouts:
- Sweat was wicked away quickly
- The fabric dried fast between sets
- No heavy, soaked feeling
Even under layered clothing, the shirt didn’t feel suffocating.
Durability
After multiple washes:
- Fabric retained elasticity
- No seam fraying
- No odor retention issues
Overall, the shirt feels built for long-term rotation in training gear.
Customer reviews
On the official website, the Under Armour HeatGear Compression Shirt holds an impressive 4.8 out of 5 rating, based on more than 1,100 verified customer reviews. This high score reflects strong consistency in satisfaction among real buyers.
💬 Some customer feedback:
💬 “Fits like a second skin without restricting movement.”
💬 “Great for hot workouts doesn’t feel heavy when sweating.” ⭐
💬 “Perfect under football pads or as a gym base layer.”
💬 “Holds up well after many washes.”
💬 “Compression feels supportive without cutting circulation.” ⭐
Key takeaways from the reviews
- ✅ Excellent moisture management in warm conditions
- ✅ Strong but comfortable compression
- ✅ Durable fabric that maintains elasticity
- ✅ Ideal for layering or solo wear
- ⚠️ True compression fit—size up if unsure
Customer satisfaction is consistently high, especially among athletes training in heat.
Professionals Who Recommend This Shirt
Several performance coaches and sports reviewers highlight HeatGear apparel:
- Jeff Cavaliere (Athlean-X) frequently discusses compression layering for performance and recovery.
- Coach Levi has reviewed HeatGear products for training functionality.
- Strength and conditioning coaches across football and track programs often recommend HeatGear as a reliable base layer.
- Trainers featured in Under Armour campaigns regularly wear the shirt during performance demonstrations.
Its reputation in football, baseball, and gym training communities reinforces its reliability.
Why this product : HeatGear combines lightweight fabric, durable stretch retention, and reliable sweat control making it a strong choice if your priority is staying cool and supported during high-output sessions.
Comparison With Other Compression Shirts
| Feature | Under Armour HeatGear | Nike Pro Compression | Adidas Techfit |
| Fabric Weight | Very lightweight | Lightweight | Medium-light |
| Compression Level | Strong | Moderate | Strong |
| Moisture Control | Excellent | Very good | Very good |
| Heat Performance | Optimized for hot weather | Versatile | Slightly warmer |
| Durability | High | High | High |
HeatGear’s biggest advantage is heat management in warm training environments, while still delivering firm compression.
Conclusion
The Under Armour HeatGear Compression Shirt remains one of the most reliable compression tops for athletes training in warm conditions.
It delivers:
- Strong, consistent compression
- Excellent sweat control
- Long-term durability
- Versatility as both a base layer and standalone top
If your priority is staying cool while maintaining muscle support during high-intensity training, HeatGear continues to be a dependable choice.
