PFAS-free means a product is made without per- and polyfluoroalkyl substances — the 'forever chemicals' long used in durable water-repellent (DWR) finishes and some membranes. PFAS persist in the environment and human body and are increasingly regulated, so outdoor brands are switching to PFAS-free DWRs and membranes (like Gore-Tex ePE) that aim to match performance without the environmental harm.
Mammut 360 Fusn Technology is a proprietary Mammut body-mapped knit-construction technology that engineers a garment's structure around the body in 360 degrees, integrating zones of stretch, support, and breathability with minimal seams. The aim is a close, comfortable, mobile fit that reduces chafing and pressure points, used in Mammut's performance base and active layers.
Mammut Georganic 3D Technology is a proprietary construction approach that shapes garments to the body's three-dimensional, natural geometry — placing seams, panels, and articulation to follow how the body actually moves. The goal is an ergonomic, body-mapped fit with greater freedom of movement and fewer pressure points, used across Mammut's technical apparel.
Mammut Flextron Technology is a proprietary Mammut knit-construction technology engineered to deliver stretch, structure, and freedom of movement in garments. By building stretch and support directly into the fabric structure, it aims to combine mobility with durability in pieces like softshells and active layers, reflecting Mammut's focus on body-mapped, performance-oriented construction.
Mammut DRYtechnology is Mammut's proprietary waterproof, windproof, and breathable membrane technology used in its rain shells and hardshells. It's the brand's in-house alternative to licensing an outside membrane, engineered to keep out rain and wind while letting sweat vapor escape, and offered in tiers tuned for durability, breathability, and weight.
The Patagonia R1 is an iconic technical fleece built from a high/low grid fabric (Polartec Power Grid) that traps warmth in raised channels while the recessed grid cuts weight and boosts breathability and moisture movement. A versatile mid layer or cool-weather base layer, it's prized by climbers, skiers, and hikers for excellent warmth-for-weight and all-day comfort during active use.
Patagonia Capilene is a line of synthetic (polyester) base layers engineered to wick moisture, dry quickly, and regulate temperature during activity, made largely from recycled materials with odor-control treatment. Offered in several weights — from lightweight for warm or high-output use to thermal weight for cold — it's a long-standing benchmark for performance synthetic base layers.
The Patagonia Nano-Air is an active-insulation jacket built around Patagonia's FullRange insulation and stretchy, air-permeable fabrics, designed to be worn continuously during high-output activity. It dumps excess heat and moisture so you stay comfortable on the move without constant layering changes, trading some peak warmth and wind resistance for outstanding breathability and stretch.
The Patagonia Nano Puff is a popular lightweight, compressible synthetic insulated jacket filled with PrimaLoft Gold Insulation Eco (recycled synthetic insulation) and made with recycled, PFAS-free materials. Built for warmth that survives wet conditions, it works as a static insulating layer or a packable 'always in the pack' puffy, prioritizing reliability and sustainability over ultimate warmth-for-weight.
Polygiene is an odor-control technology applied to textiles that inhibits the growth of odor-causing bacteria so garments stay fresh and can be worn longer and washed less. Traditionally based on recycled silver salts (with newer bio-based options), it's widely used in synthetic base layers and activewear to counter the odor retention synthetics are prone to.