Sidewall accomplish several things. They can keep out the weather, including wind, rain or even snow. They also can either block the view or open up the view. Sidewall comes in three styles:Solid, which is an opaque fabric; window, which has a clear window panel surrounded by opaque fabric and clear, which is mostly clear with the edge only being white vinyl. We carry hanging sidewall in each style which would be used on most frame tents and pole tents. We also carry keder sidewall, which slides through a channel on the side poles creating a more windproof seal. This style of sidewall is used with both track tents and clearspans.