Product details:

The Midweight Living Lining fabric is the perfect thickness for versatile riding, offering added warmth for colder days and added moisture-wicking for hot days and high-exertion climbs. Quick Drying and Highly Breathable Midweight 200 Living Lining Provides consistent temperature regulation without adding bulk or weight. Four-way Stretch Fabric Non-biocidal Finish Keeps Odors at Bay Slim Fit Sits close to the body, with room for the garment to move with you.