I always wonder how tots can crawl at break neck speeds on hard floor without a wince. For those who have chased tots on our knees can attest that it is painful and probably damaging for our knee caps. I do realize tots are much lighter so the load is more delicate but it would be better for everyone’s knees and sanity if there was padding, like the Silipads knee pads with silicon padding. Why didn’t these exist when my tots were crawling?? These are great for going outdoors because scratchy abrasive surfaces does not stop a tot from wanting to be on the go! Put these easy to go on pads and let them go! But wear gloves of course =) One size fits most, comes in blue, green, orange or red for $14.95 at Silikids.