Flexible yet durable, the Nike SB Delta Force Vulc Men's Skateboarding Shoe brings exceptional boardfeel and breathable details so you can skate all day, any day. Breathability A mesh tongue and perforations on the sides allow for breathability to keep you cool throughout your session. Boardfeel and Flexibility The vulcanised construction gives you a low-to-the ground feel and is flexible so you jump and flick naturally, without distraction.