Schwalbe's Jumbo Jim 26" tires have large, tall center knobs that penetrate through surface layers finding traction underneath. The large square side knobs aid in cornering control. Added volume and lower air pressure make the tire ideal for deep sand or loose snow. SnakeSkin material asures cut-resistant sidewalls and easy tubeless conversion. LiteSkin is the lighter option by only reinforcing the bead instead of the sidewall but is still tubeless compatible. EVO lineup uses the very best possible materials and latest technology.