PFAS-free (also called PFC-free) describes outdoor gear and finishes made without per- and polyfluoroalkyl substances — a class of persistent synthetic 'forever chemicals' long used in durable water repellent (DWR) coatings and waterproof membranes for their water- and stain-repelling properties. Because PFAS persist in the environment and raise health concerns, the industry is shifting to PFAS-free alternatives, now often required by regulation.
Mammut 3°60 Fusion is a garment construction technology from the Swiss brand Mammut focused on creating apparel with all-around (360-degree) comfort, fit, and freedom of movement — for example through seamless or fused, low-bulk construction that reduces chafing and restriction. As a brand-specific approach found in Mammut's technical apparel, it reflects the broader goal of building garments that move with the body and feel comfortable next to the skin during activity.
Mammut Georganic 3D is a garment construction and patterning approach from the Swiss brand Mammut that shapes apparel three-dimensionally to follow the body's natural form and range of motion, improving fit, comfort, and freedom of movement. Rather than flat, two-dimensional patterns, Georganic 3D uses anatomically shaped, ergonomic construction so garments move with the body during activity — a design philosophy applied across Mammut's technical apparel.
Mammut Flextron is a softshell fabric technology used by the Swiss outdoor brand Mammut, designed to provide four-way stretch, breathability, durability, and weather resistance for active mountain pursuits. Built for climbing, mountaineering, and ski touring, Flextron softshell garments aim to combine freedom of movement with protection from wind and light weather, breathing well during high-output activity — Mammut's in-house take on a high-performance stretch softshell.
Mammut DRYtechnology is the Swiss brand Mammut's waterproof-breathable technology, used in its rain shells and hardshell jackets to keep rain out while letting sweat vapor escape. Like other waterproof-breathable systems, it pairs a membrane or coating with a DWR finish, and is offered in different versions tuned for durability, weight, and breathability. It represents Mammut's approach to weather-protective shells, alongside its use of established membranes like Gore-Tex.
The R1 is a classic Patagonia fleece layer made from a grid-pattern fleece (Polartec Power Grid) that traps warmth in its raised grid while channeling moisture and air through the low channels, making it exceptionally breathable for its warmth. Part of Patagonia's 'Regulator' (R) layering line, the R1 is a versatile, do-everything mid-layer or active base layer prized for high-output cold-weather activities.
Capilene is Patagonia's line of synthetic (polyester) base-layer fabrics, engineered to wick moisture away from the skin, dry quickly, and regulate temperature during activity. Offered in several weights for different conditions, Capilene represents the synthetic side of the base-layer world — fast-drying, durable, and aggressive at moisture management — in contrast to natural merino wool.
The Nano-Air is a Patagonia insulated jacket designed as 'active insulation' — built to be worn continuously during high-output activity rather than only at rest. It uses a stretchy, highly air-permeable synthetic insulation and breathable face fabric so that body heat and moisture vent as you work, preventing the overheating and sweat-soaking that occur when wearing a traditional puffy while moving.
The Nano Puff is a popular lightweight insulated jacket from Patagonia, filled with PrimaLoft synthetic insulation rather than down. Known for being light, compressible, and warm even when damp, it works as a versatile mid-layer or standalone warmth layer. As a synthetic 'puffy', it trades a little warmth-to-weight versus down for wet-weather reliability and lower cost.
Polygiene is a brand of anti-odor treatment applied to fabrics, traditionally using silver salts to inhibit the growth of the bacteria that cause body-odor smells in worn clothing. By keeping odor-causing microbes from multiplying, Polygiene lets garments — especially synthetic base layers and active wear — stay fresher longer and be washed less often. It controls odor but does not change a fabric's warmth, wicking, or waterproofing.
