1st off...     There's a reason black is the most ubiquitous color for fitness fans who really get that heart rate up.    SWEAT,     via GIPHY     Top picks:  All priced under $80     Overall:     Adidas Outdoors Believe This High Rise  3/4 tights-has a flat matte finish-is super silky soft to the touch (we slept in them-on an overnight flight)... and easily  can work as a multi-activity athletic or yoga bottom.     Stretchy with just the right amount of compressive fit without feeling constricted (75% polyester/25% elastic)-it's made with the brand's Climalife fabric-that breathes .    Added plus- the anti-microbial gusset and a sweat channel Badge of Sport on the back waist-  real positives for multi-hour endurance activities in hot weather.      Helpful maybe --- a small inside back pocket-we fold in some currency in case we need to grab a cab back from hours in the great outdoors-city park.     Fits- American sizes-XS-XL rise hits right under the belly button. $...