Black Diamond Strataline Stretch Shell: 352-Gram Alpine Hardshell for SS26

Black Diamond just launched a three-layer stretch shell that clocks in at 352 grams. That number matters. Most 3-layer hardshells in this category run 400 to 500 grams. Black Diamond Strataline Stretch Shell gets there without cutting corners on waterproofing or breathability.

The fabric is a 17 denier stretch nylon face with BD.dry three-layer construction and a jersey backer. BD rates it at 20,000 mm hydrostatic head and 20,000 g/m2/24 hr breathability. The DWR finish is PFAS-free. Taped seams throughout. Waterproof main zipper. Underarm zip vents for active breathability when you are moving hard. Adjustable cuffs and hem. Slight droptail for coverage on the move. Packs into its own right-hand pocket.

This is a shell built for alpine climbing, ski touring, and technical mountain days where you need a jacket that can take real weather without adding real weight to your kit. The Strataline sits in Black Diamond's SS26 collection alongside their broader push into technical softgoods for the climbing and mountain running market.

The 17D face fabric is worth calling out specifically. Most 3-layer shells at this weight use 20D or 30D face fabrics. Going to 17D is how BD shaved the grams without dropping the layer count. The tradeoff is abrasion resistance, but for the intended use cases, moving fast on mixed terrain or skinning in variable weather, it is the right call.

Quick specs: 352 grams. 17D stretch nylon face. BD.dry 3-layer construction. 20,000 mm waterproof. 20,000 g/m2/24 hr breathability. PFAS-free DWR. Taped seams. Waterproof main zip. Underarm vents. Packs into right-hand pocket. Available in men's and women's cuts. $300 USD. Shipping now direct from Black Diamond and at REI.

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