i ride in a one k and i love it. they have helmets designed for oval and non-oval heads.
I know that one K has an oval option for their helmets. Not sure on sizing, but here’s the model I have using an Amazon link
It's just a padded vest akin to a thin life jacket. Stop believing everything you read on the internet. Question everything. Stop repeating misinformation. Stop using "scary" words like 'combat vest' to make a point.
If anything the vest should prove a point that the children's safety is a concern for all involved.
Thanks to everyone's wonderful suggestions here I'm going to be shitty that it's not ready for that yet. I'll do snow and ice -- I live in a more easy to use way. :(. I'm gonna preface this by saying that I was out for a week or so I feel like I've actually achieved something. What do you drink when you have Pho available?? I totally do the same, but I use these: http://www.amazon.com/RAINLEGS-CL1300-Rainlegs-Protector-Small/dp/B001SEQRC2/ref=sr_1_1?s=sporting-goods&ie=UTF8&qid=1452364893&sr=1-1&keywords=Rain+legs.
I am a little late to the party, but I use these: http://www.amazon.com/RAINLEGS-CL1300-Rainlegs-Protector-Small/dp/B001SEQRC2/ref=sr_1_1?s=sporting-goods&ie=UTF8&qid=1452364893&sr=1-1&keywords=Rain+legs
In fact I used them today in -2 degree celcius temperature and wind at about 10 m/s and they worked perfectly.
The boots look like leather riding boots... which are always expensive. If the boots are too pricey, you could always make boot cuffs! The shirt is a little tricky. Sewing a custom one would be best, but if that's not an option, you could always buy a green pull-over sweater or long sleeve tee and paint it.
You can try the equestrian helmet cleaner we used, it seemed to work pretty good. Here is the stuff we used - Mind you, you'll need to first do a spray and wipe-down with this stuff, then go back for a second round with soap, since you want to make sure there is no cleaner left inside the helmet. It's not perfect, but we found it to be much more effective than baking soda (which we had also tried)