Merino wool has a subdued, handsome look that's hard to beat. It's a look that's made the U-Sixty T an Ibex favorite for years. Just the right weight and athletically cut, the U-Sixty is quality constructed for durable wear while providing the amazing benefits of sustainable wool. Flatlock detail at center back. Machine washable. Lightweight jersey. 18.5 micron. 100% New Zealand Merino wool. Made from superfine 18.5 micron New Zealand merino wool, our super soft, quick-drying, lightweight jersey fabric outperforms synthetics and cotton in warm conditions. Wool's natural temperature- regulating and moisture-managing properties give you next-to-skin comfort year-round. Ibex uses this fabric for warm weather tops and for baselayers in the cooler times of the year. Easy care, machine washable. 100% Merino Wool.