The Head Total Joy Skis with SLR 90 Bindings is the most versatile in terms of front side and all-mountain performance. At 85 mm underfoot, these skis have the perfect blend of torsional stiffness and all-mountain versatility that'll take you wherever you want to go. Thanks to this shape, the build, and the profile, the Total Joy hits a lot of the right notes when it comes to quick turns, light weight performance, and ease of use. These things are pretty high-tech when it comes to construction, with Head using a lot of materials that are space-age in nature. Starting with a light Karuba wood core, Head adds Graphene and carbon to the mix. The Graphene is an incredibly light and strong material, and carbon is pretty much ubiquitous in ski building these days, so if you're looking for the high end of light weight and performance, these fit the bill. They're able to accomplish a lot of the same performance characteristics of a ski with metal laminates but at a fraction of the weight. While this is great news for lighter weight and less-aggressive skiers, it is a bit prohibitive for heavier and more advanced athletes looking to push a ski. These skis are just a Joy to ski on.