1. Make sure your wetsuit fits you. If you buy a wetsuit too small, you will keep stretching it out every time to put it on. So make sure you get a wetsut with a comfortable fit.
2. Do not leave your wet, smelly wetsuit in your car or backyard to rot. You need your wetsuit to last as long as possible. So as soon as you can, wash it!
3. Rinse your wetsuit after each use. Never ever put your wetsuit in the washing machine! You need to clean off all the salt from the ocean, or if for some reason you are wearing your wetsuit in the pool, then you need to get rid of that chlorine. Also you need to get rid of your sweat. Make sure all the parts are clean, including the leg and arm holes, all the way to the wrists and ankles. You can dunk it in a large bucket of clean water or hose it off.
4. Dry your wetsuit in the shade, not in direct sun. The sun will dry up the rubber and shrink it. Also those extra harmful UV rays will not be doing any good. So pick a spot where it will be shady, or dry it indoors (shower or shed perhaps).
4. Hang it by the waist. Do not ever hang your wetsuit up wet, with a standard coat hanger. The heavy wet rubber will be pulled down by gravity, and stretch out and damage the rubber on the shoulders. You’ll end up getting rips and tears in the top of your wetsuit. So hang your wetsuit over a hanger at the waist.
5. If your wetsuit zipper breaks, or something tears, even though you have been looking after it correctly, then use your warranty. Most wetsuits come with a warranty so if your wetsuit is still young and something goes wrong, get it fixed!