The Outdoor Research Men's Helium UL Jacket is a lightweight, packable rain shell engineered for wet and windy conditions. Constructed with a proprietary waterproof, breathable fabric and fully seam-taped construction, this jacket provides reliable protection against rain and moisture without adding unnecessary bulk. The fabric’s windproof barrier helps retain warmth while allowing internal vapor to escape, reducing clamminess during active use.

Its minimalist design includes an adjustable hood, zippered hand pockets, and a single chest pocket that stuffs the jacket into its own pouch for easy storage. The jacket weighs under seven ounces, making it suitable for backpackers, trail runners, and daily commuters who prioritize mobility and packability. The durable water repellent (DWR) finish beads water on the surface, while the seam-taped interior ensures waterproof integrity at critical points.

With a trim athletic fit that layers well over a baselayer or light midlayer, this jacket performs across a range of temperatures and activities. The fabric is quiet and not plasticky, offering a soft hand feel that enhances comfort. Adjustable cuffs and a drawcord hem allow a secure seal against the elements.

This jacket is not insulated, meaning it relies on layering for warmth, but its protective shell nature makes it a versatile year-round piece. The color options are muted and practical, appealing to outdoor enthusiasts who value function over flash. The zipper pulls are easy to grip with gloves, and the hood fits comfortably over a climbing helmet.

Despite its ultralight construction, the jacket holds up well against abrasion from pack straps and brush. The price point reflects the brand’s commitment to durable, field-tested gear. For anyone seeking a no-fuss, high-performance rain shell that easily stows in a pack or pocket, this model delivers consistent protection and breathability.