Hoka One One has signed up a triathlete, Kirsten Kasper, and an ultrarunner, Tim Frederiks, for endorsement contracts. Meanwhile, Deckers Brands continues to develop the presence of Hoka One One in the road running segment. The brand, which started off in trail running, will be the official sponsor of the Dallas Marathon for the second time on Dec. 10. It will show its products on the previous two days at the Dallas Marathon Health & Fitness Expo.