Patagonia R4, size XS, brown. There are various versions of the R4, but this one has a more formal feel, and I think it's better suited for urban environments. The R4, which prioritizes warmth among Patagonia's R series, is not suitable for mountaineering, in my opinion. Since I'm using a smartphone, the exact color is difficult to capture, but it's a dark brown. It's in excellent condition. *I am not accepting discounts, but I plan to lower the price over time.* December 27, 2025: Price reduced from 21,000 yen to 20,000 yen. Actual size (as shown in the photos): Length: Back 66cm, Front 62cm Width: 50cm *Since it's Patagonia XS, it's equivalent to a Japanese size S.* *Regarding Patagonia's R (Regulator) series fleece:* Patagonia, a mountaineering brand, created this series by pursuing only the functionality that mountaineers can truly use in harsh mountains. It's a different line from the popular Retro-X and Synchilla, which are more focused on casual wear. There are R1, R2, R3, and R4, and the higher the number, the greater the insulation. However, since mountaineers sweat even in winter while climbing, simply having high insulation isn't enough. The significant difference between this and inexpensive fleece is how well it handles sweat. Currently, only the R1 is available in the R series; the others are no longer manufactured. The reason why the R2, which was particularly popular, is no longer manufactured is unknown, although there are various theories.