





3L INSULATED PANT PROTYPE
Fabric
3-layer technical fabric engineered for protection and mobility.The pants are made with 3-layer PFC-free polyester fabric featuring a DEFEND 4-way stretch membrane.
This construction provides 20,000 mm waterproofing and 20,000 g/m²/24h breathability, ensuring reliable protection from snow, wind, and moisture while maintaining comfort and freedom of movement.
The DEFEND 3-layer fabric is designed to withstand extreme weather conditions, offering high abrasion resistanceand long-lasting performance on snow.
Care
Maximum washing temperature 30°C. Normal process. Do not bleach. Do not tumble dry. Not hot ironing. Do not dry clean. Do not use softener. Do not leave it to soak.
Description
Unisex insulated ski pants designed for reliable performance in all winter conditions.
The 3L Insulated Pant Prototype embodies the essential NASR approach: clean design, functional details, and uncompromising protection.
Designed for intensive on-snow use, these ski pants are built to perform consistently throughout the season.
Constructed with 3-layer PFC-free polyester fabric and a DEFEND 4-way stretch membrane, these snow pants offer 20K waterproofing and 20K breathability, ensuring protection from wind, snow, and moisture while maintaining freedom of movement.
Thermal insulation is provided by PRIMALOFT® Eco Black 80g, delivering warmth without adding bulk.
Fully seam taped construction, waterproof reverse zippers, and inner-leg ventilation support weather protection and thermal regulation.
An adjustable waist belt and reinforced lower leg fabric enhance fit, durability, and comfort during demanding on-snow activity.
Technologies
- DEFEND™ 3L Membrane3-layer construction with 4-way stretch membrane for protection, flexibility, and all-day comfort in extreme winter conditions.
- PRIMALOFT® Eco BlackLightweight synthetic insulation (80g) that delivers warmth, breathability, and reliable thermal performance, even in wet environments.

Engineered Performance, Exactly Where Needed
Every detail of this pant has been designed by our creative direction and tested on snow by our test team, drawing from direct experience in World Cup racing environments.
All features are developed to perform exactly where and when they are needed, with no unnecessary elements.
The front pockets are positioned to keep essentials accessible in every skiing situation, whether standing, moving, or wearing gloves.
Inside the pockets, additional internal compartments allow for better organization, keeping items secure and easy to reach at all times.
REINFORCED WHERE IT COUNTS
The pant features a full wrap reinforced fabric at the hem, designed to protect high-wear areas in every situation. Unlike standard internal reinforcements, the reinforced panel runs all around the lower leg, preventing damage from ski edges, boots, and repeated contact. This construction protects the fabric even when opening ski boot buckles or during frequent on-and-off movements.
ORGANIZED UTILITY. RACE PROVEN.
The full zip construction comes directly from the racing world, where NASR belongs. Originally developed for competition, this design allows athletes to put on or remove the pant quickly, adapting instantly to changing conditions. It makes the pant ideal for pre-race use, but also extremely versatile: easy to wear when temperatures rise or when additional equipment, such as knee protection, is needed underneath.
A MARK OF QUALITY
NASR is rooted in the World Cup racing environment, where performance is measured in details. Years spent on snow, chasing the perfect turn, have shaped our constant search for the perfect garment. Every product is developed with the same mindset: precision, function, and quality without compromise, tested where performance truly matters.
NO ROOM FOR TOURISTS
This product is not designed for occasional use. It’s made for those who spend their days on snow, who train, test, and push their limits in all conditions. No compromises, no shortcuts — just equipment built for performance, from pre-race to everyday training.

