I've tried the Hand Jammies, Singing Rock Chocky gloves, and the Ocun Crack gloves and the Ocun's were by far the best crack gloves. Ocun's are thinner than the Singing Rock gloves and also have a velcro strap that wraps around the wrist to stay in place unlike the Singing Rock Gloves. They are more durable than the Hand Jammies (which would rip after a single use) but probably not as durable as much as the Singing Rock gloves because of their thinness. The only downside is that the Ocun's tend to run small so try them on before buying if you can or buy a size up.
This review was written in the old system and had content requirements that are different than reviews written today.