Joined: Aug 2008
Posts: 13,140
Likes: 2,162
From: Ann Arbor, MI
Bikes: 15 Kinesis Racelight 4S, 76 Motebecane Gran Jubilée, 17 Dedacciai Gladiatore2, 12 Breezer Venturi, 09 Dahon Mariner, 12 Mercier Nano, 95 DeKerf Team SL, 19 Tern Rally, 21 Breezer Doppler Cafe+, 19 T-Lab X3, 91 Serotta CII, 23 3T Strada
Latex tubes have reduced rolling resistance, are lighter, and more resistant to snakebite (i.e. pinch) flats. Downside is that they leak down faster and are expensive.
Panaracer make a tube (in their own factory) called the R Air that's a superlight blend of latex and butyl, supposedly offering the benefits of both materials. It can be patched with a regular butyl patch kit. Cost is about $14 per tube, but it's probably the best performing, all around tube you can buy.