The North Face Ultra TR II Trail Running Shoe - Men's Mesh Rubber sole Shaft measures approximately 3" from arch The update to the award-winning Ultra TR with the same exceptional traction and featherlight ripstop construction The Ultra Series is designed to provide critical impact and element protection while eliminating excess weight for unrivaled performance on any terrain Designed for neutral pronation FlashDry fibers in the lining and breathable Ultra Airmesh construction manage moisture to reduce chafing and hot spots. Upper: Cross-country spike inspired, ripstop-tent-fabric upper