These Under Armour Capri Sonic shorts I bought on the Under Armour website in 2013. Here it was given the picture above and the two following to this description: What's it do? Meet HeatGear® Sonic: UA’s newest and greatest baselayer innovation. We started the “performance” revolution with our original HeatGear® compression—the ultra-tight fit that increases muscle power…and makes you feel invincible...

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