Available in black, blue, orange, or white, the design here is sporty. The outer panels of the earpieces are emblazoned with the UnderArmour logo, and each earpiece is outfitted with soft silicone fins for extra stabilization. The fins and eartips combine for an extra-secure fit for those with small to medium-size ears. I’m in the middle, and the fit felt plenty secure on a brisk walk, but I would probably opt for a larger pair for intense exercise. For small ears, these should be ideal, and they ship with three pairs of eartips (in XS-M) and three pairs of earfins to get just the right fit. An IPX7 ratingextends to the earpieces only, not the charging case. It means the earpieces are fully waterproof, so they can withstand being submerged up to 30 minutes in a meter of water. Bluetooth signal doesn’t really work underwater, so that stat isn't terribly meaningful, but the point is that the earphones will survive any sweaty workout, and they can be rinsed off with moderate water pres...