Applying X-Bionic research & development to high quality Merino Wool has resulted in these technical garments for the cold season. The Magic of Merino wool, 100% nature plus X-Intelligence. Apani® Merino by X-Bionic® is the most comfortable functional ski underwear. Apani® Merino – as pure as nature intended® – naturally cools, warms and dries where necessary and not just where it can.