I do not understand why many people here say, the anti-slip function is bad or quickly over. I bought the kneepads so that they 'save' the knee of my baby. This suggests but also the name of the article! The summer was long and hot, and in almost all friends and relatives tiled flooring is available. Our little one crawls like a madman and then had dinner often many blue (brown) spots of the hard ground. By kneepads you had in the heat no long pants or tights attract, but just could let him crawl as much as he wanted, without that he was all sweaty afterwards. For all those who especially value the anti-slip function and have complained here: why your small crawl even faster - it will eventually not promised that it contributes to the crawling-LEARN !! Because if your baby can crawl properly, then it slips in the knee area not to leave .. So premeditate times what you buy and what not simply rummeckern !!