Combining the best elements from the trail running Masai and the bouldering-oriented D7 shoes the CTC is the lightest of Montrail's hybrid footwear and the best choice for those who go fast on smooth rocky grades. If you hike with a pair of bouldering shoes the CTC is your one-stop replacement that can carry you up the trail and across smooth granite and broken black basalt. The lightweight sole uses a combination of sticky rubber Gryptonite™ with trail ready FasTrax carbon rubber for a grip that lasts through multiple seasons of hard use. Like the Masai the TPU-reinforced upper is breathable and reduces the overall shoe weight. A molded Elon EVA midsole provides more cushion and stability than some bouldering shoes but the weight-saving single-density profile may not offer enough padding for hard-charging trail runners who pound down long and steep routes. If you're looking for a shoe that grips varied terrain on light hikes and urban walks Montrail's CTC is excellent for going fast and getting technical.