The D2 VF 75 is a cambered frontside carving machine with no speed limit-the quintessential "illegal" racer (because its radius isn' t FIS-legal). Atomic' s Doubldeck, or D2, construction features a top core and a bottom core (the two "decks") separated by shock absorbing material. The flex starts soft but gets progressively stiffer at higher speeds (Atomic calls it Varioflex, or VF), while the skier, riding the top deck, is insulated from balance-compromising shocks. The harder you push it, the more it pushes back. The lower core is milled foam.