It's best to read expandable hose reviews (
http://www.knowitalllearning.com/best-expandable-hose/ ) for best expandable hose suggestions. When making your choice look out for the following:
Inner tube thickness and material - Make sure it's made from quality latex and has a wall thickness of at least 1.8 mm.
Hose length - Don't be temped to buy the longest hose available. They normally come in 50 foot, 75 foot and 100 foot lengths. Choose the one that comes closest to the maximum length you'll need in your garden.
Connectors - Make sure that the connectors are solid brass. The plastic ones will quickly crack after being in the sun for a while or after being trodden on.
Outer sheath - Make sure that the outer sheath is made from a durable, quality synthetic material. This will protect the inner tube from getting punctured. The weave of the sheath should be tight enough to still cover the inner tube adequately once fully expanded.