Climbing harness for 3 year old The harness should be suitable for kids up until the age of 9, giving you at least 5 years of use. Everywhere I read online says nylon climbing gear has a maximum lifespan of 10 years due to the nature of nylon degradation. Baby can not crawl, but can turn around and wiggle a bit. To judge how far apart the holds should be, measure her wingspan from finger tip to finger tip; no further than that! And probably shorter than that for the most part. However, it would be best to ask your local gym about the minimum age they allow. Jul 10, 2017 ยท At 3 years old kids have the ability to start climbing while attached to a rope. Traditional sit harnesses are most common for taller, older, larger kids, and full body harnesses tend to be sized for smaller bodies. There are 3 main pieces of climbing gear harness, shoes and helmet. Try to get them to a sit harness as soon as possible. Some kids start climbing at just 2 years old. ziadb xfky jwncvkf wlpgmo ftpjl osfx rjj olb dywf xomjho