Those fleeces in Patagonia are windproof? Fleece has always been Patagonia’s star product, including the four traditional styles of R1, R2, R3, and R4, as well as derivative styles such as Rextro-X and Re-Tool. In terms of fleece clothing, Patagonia Nia can be said to have the most complete product line among many top outdoor brands. Retro-X Fleece Retro-X Fleece, as a derivative of the R series, is another classic masterpiece of Patagonia. Compared with Snap-T, the overall performance is stronger. It adopts a three-layer design, with the outer layer made of its own synchilla long fleece, the middle layer made of enhanced windproof and breathable membrane, breathable and moisture-wicking, and the inner layer lined with breathable mesh.