I guess you're asking the wrong question. Would be better to ask what to look for in a strap.
Avoid the ol fashioned straps with open hooks, thin neck bands. Similarly avoid the supe cheap nylon staps, they're not comfortable.
1 - Hook - should be closed with a spring loaded clip, strong and preferably plastic, carbon or glass reinforced, not metal as this can damage the sax finish and be noisy. Make sure the spring is strong enough to stop the clip from opening at unwante times. Hook should also have a swivel in it. Examine the hook/lock carefully - the last thing you want is this failing when you're not holding the sax... If the swivel is a touch rough, cork grease can help a lot.
2 - Adjuster - needs to have sufficient range for you, but range is really decided by strap size. Different saxes have the hook ring in different places, so if you have a thick neck, or a sax with a low ring, you may need a slightly bigger strap. Adjuster should have a smooth action with the weight of the sax on the strap, but shouldn't slip, which can be very irritating. Some adjusters don't have a very smooth action, this depends partly on the cord.
3 - Neck band. This takes the main weight of the sax and distributes it across your neck/shoulders. It needs to be soft and comfortable, but not so soft that it curls up into a thin band. Padding needs to be fim, but not so fim that it doesn't adjust to your neck. Some people find that the strap puts pressure on the spine and gives problems with pressure on nerves, the Cebulla is designed to avoid this and succeeds. The neck band needs to breath, otherwise they become sticky/sweaty. One solution is to make sure that there's a thin cloth between the strap and your neck - a thick shirt collar may work, but isn't an option with a t-shirt. Soft leather's OK, but can, as Saxlicker said, get uncomfortable/sticky. One other issue with the neckband is that the cords joined to it can dig into you neck on some straps. Especially the ends.
4 - If you have problems with neck/shoulders, consider a harness.
Overall the strap should feel comfortable with the full weight of the sax on it. Some straps may need a little breaking in, my Cebulla has become more comfortable as I use it more. Adjustment should allow you to get the mouthpiece exactly where you need it for playing, with a reasonable amount of adjustment either side so that you can have a slouchy day or play sitting if needed.