The soft stretch fabric of the Sunice Classic 1/4 Zip Mid Layer Top provides comfortable warmth This light layer helps retain body heat while managing moisture to keep you dry Flatlock stitches are soft anywhere they touch the skin and help reduce the feel of bulk 90pct polyester/10pct spandex fabric Stretch fabric for comfortable fit and movement Breathable and moisture wicking to keep you dry and comfortable Lightweight for comfortable layering and versatile warmth Flatlock stitches are soft on skin Center back measures 24