What Our Gearhead(R) Experts Are Saying:"I have been wearing the Airblaster Base Layer Top under everything for two full seasons and the Air-Tech fabric is the reason I keep coming back. The 4-way stretch moves completely freely through every position on the mountain, and the fit is relaxed enough to layer over without that suffocating compressed feeling you get from most technical base layers."The best base layer is the one you forget you are wearing, right up until someone asks where you got it. The Airblaster Base Layer Top threads that needle perfectly, a technical foundation layer with the stretch and moisture management a hard day on the mountain demands, wrapped in the kind of print that makes the chairlift ride a little more interesting. Airblaster has been building base layers for over 20 years and the Air-Tech fabric at the core of this top reflects everything learned along the way. The 230g 4-way stretch construction moves in every direction without restriction, wicks sweat away from the body during hard efforts, and keeps the feel comfortable through long days of layering under a mid-layer and shell. Thumb loops at the cuffs lock the sleeves in place under gloves and keep the layering system tight and distraction-free from first chair to last run. Same cut as the iconic Ninja Suit, same commitment to making the base layer anything but boring.