When you're learning to snowboard or ski, falling is just part of the process. It's nothing to worry about, but bruises, a sore tailbone, or battered knees can really shake your confidence. If you're afraid to fall, your progress slows down. The Demon United Zero RF D3O® Pants solve this for you. This long ski/snowboard impact pant protects your entire lower body, targeting the exact spots that take the hardest hits — your tailbone, hips, and knees — while allowing you to move around completely free and easy. The Demon Zero RF Pants is a lightweight, long impact pant (leggings) featuring smart D3O® protection and an officially approved extra shield for your tailbone. Since the knee protectors are built directly into these long pants, they always stay in the perfect position. These pants are ideal for winter sports enthusiasts who want to hit the slopes with full confidence and don't want cold, wet, or painful knees when kneeling in the snow.
These pants use a combination of two materials to protect your tailbone from hard backward falls:
D3O® RF (Recycled Foam): This is a smart material that stays soft and flexible while you move, but hardens in a fraction of a second the moment you fall on it. The letters 'RF' mean it is made from 100% recycled D3O material, making it better for the environment.
ESPRO™ Shield: This is a flexible, plastic-like shell that sits right over the D3O padding. It absorbs the first hard blow and spreads out the impact force.
This combination carries an official European safety rating (EN 1621-1 Level 1), proving the pants keep you safe.
The main benefit of this long version is the integrated knee protectors. These anatomically shaped pads protect your knees from the impact of a forward fall on hard snow or ice. Additionally, the pants act as an insulating layer, keeping your knees warm while waiting around. Extra soft comfort foam lines the hips, butt, and thighs. This is mostly meant to protect against minor slides and to keep you sitting comfortably on cold or hard surfaces.
You wear the Demon Zero RF Pants just like a long base layer or thermal pants directly under your snowboard or ski pants. The fabric is stretchy, breathable, and wicks away sweat quickly. You will barely feel the pants under your winter sports clothes. Thanks to the comfortable fit, the pants — including the knee protection — stay perfectly in place all day long without sliding down or shifting during your runs and turns. Make sure to choose a size that fits snugly against your body, as the protectors work best when they stay firmly in the right spot.
Ideal for:
Beginner and intermediate snowboarders and skiers looking for full protection.
Freestyle snowboarders who spend a lot of time kneeling in the snow or practicing new tricks in the park.
Winter sports enthusiasts who easily get cold knees or bruised hips.
Less suitable for:
Professionals and racers skiing at extremely high speeds. They usually require thicker, heavier armor (Level 2).
Cheap alternatives are often short and use basic foam padding that easily flattens out. The Demon Zero RF Pants provide protection over the full length of your legs, are much thinner, more flexible, and protect significantly better because the D3O material actively responds to a fall.
Product: Demon United Zero RF D3O® Unisex Pants
Type: Long, flexible impact pant (leggings) with tailbone, hip, and knee protection
Tailbone Protection: D3O® RF foam + ESPRO™ shell (CE-approved Level 1)
Extra Protection: Built-in knee protectors and hip pads made of comfort foam
Fit: Unisex (for men and women), long model to fit under your winter sports pants
Suitable for: Snowboarding and skiing (and potentially skating/longboarding)
Do these pants replace my regular thermal underwear? Yes, absolutely. Because the pants are long and made of breathable, moisture-wicking stretch fabric, they provide both protection and the warmth you would normally expect from sports tights or thermal pants.
What is the difference between the D3O protection and the comfort foam? The tailbone shield (D3O) is built for those really hard hits when you fall backward. The softer foam pads on the hips, thighs, and knees are meant for comfort, warmth, and preventing bruises from light impacts or slides.
How do I best wash this long impact pant? If possible, remove the protective inserts. Machine wash the pants on a cold, delicate/hand-wash cycle. Do not use fabric softener and never put them in the dryer, as the heat damages the elastic and the materials. Just let them air-dry on a rack.
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