Whether I’m dressing to climb mountains, go rockpooling with the kids, or simply take our dog for a walk, I typically reach for a fleece jacket first. I own several, ranging from a big, fluffy hooded one that replaces my winter coat on dry days to lightweight, low-pile styles that are the perfect mid-layer for activities that require breathability and warmth.

Fleece jackets are typically made from a polyester alternative to traditional sheep fleece that insulates well, wicks moisture, and is durable enough for repeated washing. Fit, features, thickness, intended activity, and quality all vary considerably from one fleece to the next, so we decided to try a broad range of options to help you choose the best for you.…