A racing spike specialty developed primarily for orienteering and obstacle racing. Behind the development of this collection is a quartet of top orienteers Peter Ivars, Waren Key, Petter Thoresen and Thierry Gueorgiou, who are complemented by the matador of orienteering sole development Knutte Nord. The upper material is the only difference between the CRAZY LIGHT F1 and the FOREST 1.The CL F1 has a lightweight, strong and non-absorbent synthetic nylon upper with a ripstop finish. The entire circumference of the shoe is reinforced with a thermoplastic cast that helps stabilize the gaiters in the shoe bed. The inner arch is reinforced with a rubber part (ProtectOR) to protect this sensitive part of the foot from being hit by branches or stones. This reinforcement is brought up to the lacing and at the same time helps to fix the feet securely and effectively in the shoe. The tight lacing is supported by an ergonomically shaped tongue that does not cut into the hamstrings and significantly increases comfort in the shoe. The 6mm midsole is designed to offer sufficient comfort in the heel for long runs, the midsole is reinforced to protect the plantar fascia from overloading and the forefoot is optimised for maximum flexibility and proprioception. In the front part of the midsole, a polymer part is inserted to prevent spikes from penetrating the shoe bed (spike protector). The outsole has 9 carbide studs in 3 logical lines in the forefoot and thanks to this solution offers fantastic rebound management. In the middle part there are 2 spikes for safety in jumping over trees and other obstacles, in the heel part there are another 4 stabilizing spikes. On the entire surface of the sole you will find 15 spikes and the height of all spikes is 6.5mm. The outsole compound is the well-known butyl rubber with excellent durability and great contat parameters. Also included are replacement insoles that are optimized for the race. They have a lower height, so they offer greater agility.