Fleeces have changed a lot since their fuzzy, soft ’90s heyday. Synthetic fleece is the backbone of technical outdoor apparel — with recent advances, they move and breathe like a T-shirt, keep you warm like a sweater, and are sustainably made. Still, the quality of the fleece can vary greatly. Performance depends on the brand’s yarns and construction in crafting the fleece fabric and the yarns that repel or absorb moisture. Where to start? With reliable brands. We’ve tested fleeces from each of the brands represented in this list, and everything we’ve tried has been durable and comfortable, and has lived up to the hype. The eight layers we’ve chosen have features that stand out in one way or another, whether in the form of breathable panels, excellent stretch, or responsible sourcing. They’ll keep you warm, allow for airflow when you start moving, and look damn good while doing it. We may receive a portion of sales if you purchase a product through a link in this article.