H2No® Performance Standard is Patagonia’s benchmark for waterproofness, breathability and durability, which ensures a high level of long-term performance backed by our Ironclad Guarantee. H2No Performance Standard products undergo the most rigorous testing in the industry.
Patagonia developed the 4-layer fabric construction for our waders to increase breathability and abrasion resistance, move moisture away from the body, and decrease the weight.
Our exterior fabrics are densely woven 100% polyester microfibers for durability and puncture resistance. On one side we apply our H2No® waterproof coating for waterproof/breathable performance. On the other side we apply a Hydrophilic laminate that pulls moisture away from the body so it can be passed out through the exterior shell.
To protect the hydrophilic laminate we use a soft polyester tricot lining that increases abrasion resistance yet maintains a soft, supple drape.
Finally, we apply a DWR (durable water repellent) treatment as the first line of defense in keeping these waders waterproof.