Patagonia Men's Insulated Boulder Fork Rain Jacket is a lightweight insulated and waterproof shell jacket for men, developed for outdoor use in cold and wet weather. The combination of weather protection, breathability and light insulation makes the jacket well suited to everything from mountain hiking and fishing to active days outdoors through autumn and winter.

The jacket has a waterproof and breathable three-layer construction that meets Patagonia's H2No® Performance Standard. The outer fabric, membrane and DWR treatment are made without intentionally added PFAS and provide durable protection against rain, wind and demanding weather conditions.

On the inside, 40 g Thermogreen® insulation in 100% recycled polyester provides light and comfortable warmth. An airy and stretchy ripstop lining contributes to good breathability and freedom of movement, so the jacket also performs well during activity.

The adjustable hood has a low profile and a laminated brim that protects against precipitation without restricting visibility. A waterproof front zip provides extra protection, while two chest pockets and two spacious hand pockets with waterproof zips offer practical storage. The hand pockets are positioned high so they are easily accessible when wearing a rucksack hipbelt. Adjustable cuffs keep out weather and wind, and the hem can be cinched with a drawcord adjusted via the front pockets.

The minimalist construction keeps weight and packed volume low, making the jacket easy to pack and carry. The garment is produced at a Fair Trade Certified™ factory, where workers have received additional compensation for their work on the product.