As far as tank tops go, the Hard Core Flexxx Sport Tank is perhaps one of the softest tanks you’ll ever wear. We’re talking silky smooth, and so sheer they’ll see your nipples through the material. And those of us who like feeding off a hot man with big nips will be drooling. The HC Flexxx Sport Tank, by Go Softwear, is perfect for showing off the upper body you’ve been working so hard on. Shown here in black with red contrast.