The Elevation Life Tank Top is built from a lightweight recycled polyester, cut close enough to stay out of the way on a trail run without ever feeling stuffy under a pack. We built it around a V-neck design and standard fit that layers cleanly under a hiking shirt or stands on its own on a hot afternoon. The fabric itself is part of The North Face's Circular Design program, meaning it can be disassembled and recycled into raw material once it's done logging miles.