Meet HeatGear® Sonic: UA's newest and greatest baselayer innovation. Under Armour started the "performance" revolution with their original HeatGear® compression-the ultra-tight fit that increases muscle power and makes you feel invincible. This latest UA fabric wears like a second skin so you get the same powerful compression, plus extreme comfort for all-day wear.
I have another pair that I bought cheaply but these worked very well. I was running on a very hot day working up quite a sweat but the shorts remained comfortable and did not ride up at all. In fact I felt no need to adjust them. Essentially they did what I needed them to do.
I do a lot of weights work and find this kit ideal for that purpose, supportive, firm and comfortable. It holds the moisture of your body and stops you getting too hot and wet. It looks really good as well so come highly recommended.