Marmot’s own lightweight waterproof / breathable technology. A lamination technology that rates a whopping 20,000mm in waterproof performance and 20,000 gr in breathability. Requiring neither lining nor 3-layer construction like many similar lamination processes, MemBrain® Strata™ products are by far the lightest, most breathable garments in their categories.

The Marmot Crystalline jacket is extremely lightweight and simple.

The Crystalline is made to fit a woman’s form and fight off any storm you throw at it.

Marmot’s proprietary 2.5 layer MemBrain® Strata uses micro non-organic particles on the inside of the lamination to increase durability and provide a dry touch instead of that clammy feeling you get from some other products. The back print pattern is carefully designed to achieve the maximum durability and breathability. Abrasion tests rate 4-5 times better than regular MemBrain® (which is why regular MemBrain, as well as all 2-layer laminates require a separate lining). Compared to 2.5 layer coatings in the market, our 2.5 layer lamination is about 100% more breathable. In addition, laminated stretch fabrics stretch more and have a softer hand than 2.5 layer coated fabrics.