Running in the mountains, last weekend at ThruDarks 65 km Ultra marathon the YOMP. Took ThruDark new Pinnacle 28L Hiking Backpack. Had more than enough room for my essential race kit. Kit I used during the race that worked well: 1. Oryon Delta T-shirt, with UV protection 2. Oryon Windguard Jacket 3. Force active cap 4. Force trail running 4” shorts