If you're planning on signing up for a race like the "Tough Mudder" or the "Color Run-5K", then this quick drying and lightweight Under Armour Base 2.0 Crew may be perfect for you! As the most breathable and fastest drying base layer tested, your cardio workouts will be a breeze. If it's warmth you are seeking, opt for another layer like the SmartWool Merino 250 Base Layer Crew - Women's as the 2.0 crew trades off warmth for breathability. We loved its design and features, but weren't too thrilled about its tight fit or thicker fabric. If lightweight and quick to dry is what you're looking for, we've got it here!
Under Armour states that they have updated the fit of the Base 2.0 Crew to be a bit more sleek and modern.