The Jade 38 is exactly what you need for that extra push. It uses eco-friendly materials, has dynamic FreeFloat suspension and a sporty look. This pack will take you further.Free FloatThe new Free Float system integrates the adjustable torso length into its taut, open back panels. It's a revolutionary approach to a ventilated carrying system, and Gregory could have stopped there - but they didn't. Proprietary Free Float Flex panels allow the hip belt to twist and flex with your body's natural movements. This provides a floaty feel on the trail and lets the hipbelt wrap smoothly and comfortably around your lower back and hips.