Union Atlas Bindings 24-25 Asadachi. The go-to all mountain binding for intermediate to advanced snowboarders looking to charge hard in all conditions. The Union Atlas is a medium to stiff flexing snowboard binding that provides powerful edge to edge response around the resort and in the backcountry. Designed, tested and trusted by the best snowboarders in the world. The 2024/25 Union Atlas features an all-new highback design, upgraded ankle straps and all-new 2 layer toe strap. Scroll down to learn more in the key features section.