Made from 100% extra-fine Australian merino wool jersey Merino wool is 100% biodegradable, renewable, wrinkle-resistant, UV-resistant, and naturally breathable Lightweight 165 weight Moisture-wicking, odor-resistant, and temperature-regulating Easy care and machine-washable Factory is BSCI certified (Business Social Compliance Initiative), an organization for auditing and improving social gauges in provider nations for all consumer products Made with care in Dongtai, China and Vietnam