Featuring everything you need to get started climbing in the gym or out at the crags, the Momentum SA Package is a complete, convenient start-up kit for new climbers.. The Momentum SA is an all-around harness for everyone from the first-time climber to the seasoned hardman, the Black Diamond Momentum SA features its Dual Core Construction to provide an expert balance of comfort, ventilation and durability. Dual Core Construction uses two slim bands of high-tensile webbing on the outer edges of the waistbelt and a venting OpenAir foam insert in the center to balance comfort and breathability without pressure points. Black Diamond"s trakFIT leg loop adjustment system uses a simple, secure slide adjuster to quickly and easily adjust the diameter of the leg loop and provide a wide range of fit.