Best for :
Regular training, long, slow training runs, ultra distances, 50 miles and greater.
Best for on dirt trails, on paved trails, on paved roads, sidewalks, etc…, through grassy sections or cross-country courses, in muddy area, through creeks and streams, along moderate trails.
Untuk maklumat umum Caldera 3 ni khas digunakan bagi Trailtrack…kepada geng-geng Ultra disarankan pakai kasut tersebut. ☺️