At first glance, the prAna Quinn Printed Tank Top looks like it’s a halter top. When you look at the back, though, you notice uniquely placed, semi-racer-back straps. These straps, plus the built-in bra support, keep things in place when you stretch. Sweet. What you can’t tell from looking is that prAna made this fitted top with earth-friendly fabric and plenty of stretch for many years of bouldering under sunny, pollution-free skies.