Your kids will hang with the big dogs on this cross country tire. The XR1 Comp Kids' Mountain Tire has a tread identical to that of its fully-grown adult version, perfect for multi-purpose riding on trails or pavement.
Pavement? Sure. Dirt? You got it. Rocks? Yuh huh. This tire will take you wherever you want to go so long as you have a wheel to attach it to and said wheel is also attached to a bike with another full wheel.
Seriously though, the tire arrived in good condition, was pretty easy to change, and has worked great. My son rides his bike a lot - mostly on trail but also on pavement and it's been great for him.