Description Details - Union Ultra Snowboard bindings - navy blue (deep blue) Completely new Union Ultra bindings. Incredibly resilient and perfectly shock absorbing. The Ultra uses Union's latest manufacturing capabilities to redefine the way freestyle bindings should ride. Extremely lightweight. Built on the principles of layers, each responsible for something different, like a running shoe. The latest asymmetrical base, the Stage 11 ASYM Duraflex ST, has been designed to increase torsional flexibility. The base has been slimmed down as much as possible. TECHNICAL DETAILS: FLEX: medium 6/10 BASE: Stage 11 ASYM Duraflex ST - a new slimmed-down asymmetrical base. By removing material at the toe and heel has been increased torsional flexibility and accelerated edge pressure and provides great board feel. In addition, there is a tread in the toe area that provides better grip to the shoe. AMORTIZATION: Moleculer Bushing w/ TPE Outsole - Extremely lightweight foam, provides increased cushioning and vibration absorption, resulting in less fatigued foot muscles. Resistant to low temperatures. HIGHBACK: S15 Ultra Duraflex ST - a spoon with 6 degrees of camber, so that the spoon immediately fits very well to the shoe and provides very good responsiveness. The addition of molecular foam gives a lot of flexibility. TOP STRAPS: Forma X - a new great-fitting strap, providing a high level of responsiveness. LOWER STRAPS: NEW! TS 5.0 SL - new lower straps, simple, lightweight and durable. ADJUSTMENT: tool-less Pumps: Magnesium S1 w/ Steel Base - new lightweight and durable magnesium pumps. HEELCUP: the strongest aluminum heels in the industry BOLTS: 8.8 Grade Steel - the strongest steel on the market.New bucket and strap mounting - ASTRO WASHER, provides better bolt security. DRIVERS: Mini disk, 4x2, Channel - not compatible with 4x4 system. USER LEVEL: intermediate/advanced.Color: navy blueManufacturer code 232025ID 335977 MountingESTThe EST system is an unique Burton system, because there is no base plate under the foot, just strait up minimalistic EVA foam on top of snowboard, delivering the ultimate in feel and response. Bindings with Burton EST system are compatible with snowboards with The Channel system.standardTraditional boards have binding inserts where the channel is located. Standard mounting system allows you to mount bindings in tens different positions.Binding flexmediumMedium binding is ideal for those riders who appreciate free movements, but dynamic and fast ride is also very important for them. Union Ultra Snowboard bindings (deep blue)