An insurance policy for early season squalls, this featherweight, waterproof and breathable shell packs down to the size of a burrito. We built the X1 Jacket because the hunt doesn’t stop when the weather rolls in. With a quiet Pertex Shield 20D fabric and fully taped seams, the X1 Jacket resists early season squalls while maintaining breathability and stealth as you keep moving. At just 9.1 oz., the X1 packs into its own pocket, transforming into a compact bundle that won't burden your kit. Articulated elbows ensure unrestricted movement when glassing, and the extended tail provides crucial lower back coverage while seated or wearing a pack. The adjustable, articulated hood offers customized protection without compromising peripheral vision. Two hand pockets remain accessible even while wearing a pack, and a waist hem shock cord allows for a tailored fit to seal out the wind and moisture. The X1 Jacket disappears in your pack but rises to the occasion when weather rolls through. Proven in the mountains, HydraShield™ technology excels in the most unfavorable weather conditions. Waterproof, windproof and breathable, HydraShield™ textiles are profoundly durable while also remaining lightweight and packable. HydraShield™ technology prevents rain and snow from passing through to your body while transporting water vapors from sweat to the exterior of the textile during high exertion activities. This transfusion process ensures you stay warm and dry in all wet weather conditions. Specifications Weight: 9.1 oz. (size L) 3L Pertex Shield 20D fabric 20,000 mm waterproof / 20,000 g/m² breathable rating Fully taped seams Self-stuffing design Two backpack-compatible hand pockets Articulated elbows for enhanced mobility Adjustable, articulated hood Waist hem shock cord adjustment Extended tail for coverage while glassing and wearing a pack Expert Insights The X1 Jacket is a much lighter, much quieter version of a packable rain jacket. When compared to the well-known M5 Rain Jacket, the X1 Jacket is readily seen as being much lighter duty and higher in packability. This product is new for 2025 from Stone Glacier, and consequently it has yet to endure enough exposure to varying levels of precipitation and abrasion against "objects" while in the hands of our Gear Experts. As soon as we can speak authentically to its performances there, we'll provide those additional mentions here! Product Videos Size Chart Stone Glacier products are designed with an athletic fit to provide the highest level of performance in the field. Use the sizing chart below to help guide you to the appropriately sized garment. Note, the De Havilland Pants incorporate our patented Contour™ Waist System which provides approximately 3 inches of waist adjustment to create an exact fit. How to Find Your Measurements: Note: Calculate your body measurements, then select your product size. If your measurements are between sizes, select a larger size for a looser fit or a smaller size for a tighter fit. Measured Chest: With arms relaxed at your sides, measure under your arms, around the fullest part of your chest. Measured Sleeve: With arm relaxed at your side and slightly bent, measure from center back neck, across the shoulder to elbow and down to the wrist. Measured Belt Line: Measure around your waist at the point in which your pants typically ride. Measured Inseam: From a standing position, measure from your crotch down the inside leg to the floor. Nearly all Stone Glacier pants feature our patented Contour Waist™ system, which allows for three inches of waist adjustment. Additionally, SG pants are sized accordingly for layering. If you wear a large in our base layers, you will also wear a large in other SG layers. If you are still unsure of what size pants to buy, measure your waist and reference the "Measured Belt Line" chart above.
