Optimal knee protection: K-Pact Zip Knee Pads from ION The K-Pact Zip is made using Super_Perforator_Neoprene, which provides excellent ventilation and a snug, secure fit. The K-Pact Zip is protected by the tried-and-tested SAS-TEC pad. The Quick-E zipper enables the knee pad to be completely opened, so it can be put on and removed easily without having to take off shoes. This makes the K-Pact Zip well-suited for tours with long ascents, where you may want to carry it either inside or on the outside of your backpack. Specifications: Application: Progressive Park, Freeride, Trail Protection Zone: knees Construction: soft shell Special Fabrics: SAS-Tec Certification Number: EN 1621-1, Level 2 Features: full-length zip closure lightweight EVA side padding provides lateral protection for the knee impact areas are covered with abrasion-resistant, robust woven aramid material Materials: 35 % polychloroprene (neoprene), 35 % polyurethane, 15 % polyamide (nylon), 8 % polyester, 7 % EVA Technology: QUICK_E ZIPPER: A fully-integrated zip opens the protective sleeve from top to bottom. Super_Perforator_Neoprene: Very flexible and robust neoprene material with high breathability. SAS-TEC MAIN PADDING The SAS-TEC 3D protectors are made of viscoelastic soft foam, and are an excellent choice for safety thanks to their outstanding shock absorption. Size Guide: The size guide indicates the circumference 10 cm above the knee and 15 cm below the knee respectively: S: circumference above: 37.7 - 41.8 cm, circumference below: 33.5 - 36.1 cm M: circumference above: 41.8 - 44.2 cm, circumference below: 36.1 - 38.3 cm L: circumference above: 44.2 - 46.6 cm, circumference below: 38.3 - 40.5 cm XL: circumference above: 46.6 - 49 cm, circumference below: 40.5 - 44.3 cm Manufacturer Number: 47800-5970 1 x pair ION K-Pact Zip knee pads