AKU NS 564 Spider II Boots BlackWith excellent traction and grip, these black NS 564 Spider II Boots from AKU are suitable for all terrains and feature the advanced AIR 8000 system, ensuring excellent breathability up to 11. 5 times higher than normal standards. A Die Cut EVA midsole adds cushioning, is lightweight, flexible, soft and moulds to the natural motion imprint of your foot. The Vibram sole offers durability and the deep tread enables a solid grip on dry and wet surfaces.