Check the listing for details. iXS Flow 2.0 Knee Guards with Xmatter Foam, Lightweight, Breathable, Removable. Condition: New. Listed at 103.85 USD. Meet next-level Flow protection for your knees. The Flow 2.0 Knee represents the next generation of the Flow legacy. Lightweight and packable in true Flow style, these go from backpack to body in a flash. Equipping you for all eventualities, the integrated Xmatter padding provides reliable protection should things go wrong so you don t have to take the easy line. For the ultimate unrestrictive fit that you ve been waiting for, this iteration has elasticated hems, plus fully removable pads for whoever is on laundry duty. View Sizing Guide. Xmatter protection foam (exchangeable & removable) Elasticated upper & lower hem for improved comfort and security AeroMesh- light, moisture wicking, breathable, anti-bacterial LoopLock closures Silicone stopper EN1621-1:2012 L1 SOLD IN PAIRS-.