Adidas Terrex UK will be the official apparel sponsor of the Threshold Trail Series in 2020, a series of four endurance trail events in the U.K. The four events include: the Heineken Race to the Castle (June 6-7), the latest addition to the Threshold Trail Series portfolio, finishing at Bamburgh Castle; the Race to the King (June 20-21), which starts in Arundel and finishes at the iconic Winchester Cathedral; the Dixons Carphone Race to the Stones (July 4-5), along Britain's oldest road, “The Ridgeway;” and the Race to the Tower (July 18-19), taking participants along the climbs of the Cotswolds Way. Adidas Terrex, an outdoor clothing line for the trail, is designed to perform in the harshest conditions.