Of course you'll want a lighter canopy if you're planning on carrying it around a lot, but don't let weight be your only factor in choosing a portable canopy. You still need to make sure that the canopy has a sturdy frame. A durable portable canopy will specify commercial grade aluminum in the frame as opposed to regular aluminum, which is hollow. A commercial grade aluminum frame typically uses a higher gauge of aluminum and 100% pure aluminum as opposed to using a cast aluminum which can be weaker. Commercial grade aluminum will add to the total weight of your canopy so look for a company that makes up for the weight increase with lighter fittings.