They have a construction that's comprised of our Therminal™ fabric, which is designed to both insulate and manage moisture buildup. To do so, it has a brushed fleece interior with a light loft that pulls moisture away from skin to evaporate it at the material's surface. This loft also has the added benefit of insulation, which occurs by trapping tiny pockets of warmth between the skin and the fabric. At the exterior, you'll find light levels of wind and water protection that'll have you riding comfortably through mixed conditions.