The revised version of our test-winning K-PACT features a proven sleeve construction for a great fit using a new, very breathable sleeve material: the Super_Perforator_Neoprene provides maximum breathability even on long uphills. Asymmetrical side padding for protection from impacts and top-tube contacts. The main SAS-TEC performance padding is famous for its cushioning characteristics. Overall, the K-PACT is your reliable partner for home trail rides, bike park adventures and high-speed backcountry descents!