Arc'teryx Ionia Merino Wool Short Sleeve - Men's ski pant The Burgess Shale is a

The Burgess Shale is a 508 million year old fossil bed in Yoho National Park

Generously cut for easy layering

Think of the wild ones that roam this planet

The wide-leg cut delivers timeless appeal with a contemporary edge

easy to pack—the perfect multi-functional addition to your outdoor sports gear

Arc'teryx Ionia Merino Wool Short Sleeve - Men's ski pant The Burgess Shale is aCrafted from Merino wool, known for its ability to regulate temperature and resist odour, Arc'teryx Ionia Merino Wool SS Men's offers unparalleled performance. The lightweight and breathable fabric is responsibly sourced, while the fine gauge fibres are wrapped around a nylon core for increased durability. Its streamlined fit and articulated patterning make it perfect for any outdoor activity from hikes to runs to tours to treks.