My wife bought these boots for our 11 year old son. They look more like football boots to me. Would they be allowed in rugby? All the advice I've Googled has been contradictory. The IRB guidance I found simply said that they mustn't be more than 21mm long. Hope you can help. The studs are plastic by the way.
You are correct in that the IRB regulations on studs don't exactly cover these, but moulded studs can come in strange shapes and they are allowed.
The key thing is...are they dangerous? If you run your hand over them are they sharp or abrasive? If not you should be ok to wear them.
However, don't be surprised if the odd referee won't allow them. It is up to each individual referee to decide if they think non-standard studs are dangerous or not. As you say, they do look like football boots rather than rugby boots...but This Rugby Ref would allow them.
The Rugby Ref