Featuring a moderately aggressive rubber outsole, you’ll have excellent traction on loose gravel, wet grass and muddy trails. These shoes are specially designed for long runs over 40km long.Other great features that offer support include the Ultra midsole and Ortholite insole. Plus, there are reinforcements at the heels and toes for stability and durability. Above the thinly padded tongue, the flat laces lets you make adjustments to the fit. The lacing system is covered to prevent the laces from snagging onto something or coming loose whilst running. The lightweight Ultra 100 from Dynafit has a 6 mm drop, offering a great mix of comfort and precision for trail running.