The Patagonia Men’s R1 Ultralight Hoody is a lightweight technical fleece designed for high-output activities in cool conditions. As part of Patagonia’s R1 series, the hoody focuses on breathability, moisture management, and low weight, making it suitable for pursuits such as climbing, trail running, alpine hiking, and fast-paced backcountry travel. The garment is built from Polartec® Power Grid™ fabric, a lightweight fleece made primarily from recycled polyester with elastane for stretch. The grid-pattern construction helps trap warmth while improving airflow and moisture transport during activity. This structure allows the hoody to provide light insulation while remaining highly breathable, which can help prevent overheating during sustained movement. The minimalist design reduces bulk and improves packability, allowing the hoody to function as either a base layer or a lightweight midlayer depending on conditions. A close-fitting hood provides additional warmth and can fit comfortably under a climbing or ski helmet. The slim performance fit and stretch construction allow unrestricted mobility during technical movement. Additional details include offset shoulder seams that reduce friction under backpack straps and low-profile cuffs that allow easy layering. With its balance of lightweight warmth, breathability, and mobility, the R1 Ultralight Hoody is intended for aerobic mountain activities where efficient temperature regulation and minimal weight are priorities.

Key Specifications