One good pair of cross country boots are from the brand woof. I love them because they are cheap and they protect very well. But there are some other brands that are great too!
The benefit of open front boots is that if the horse hits a rail in show jumping or cross country, it will hurt more that brushing boots and will train them not to hit it and will jump better. They also provide more airflow and keeps the horse’s legs cooler.
Hope this helps :)
The bennifit of open front boots is so when a horse hits a jump, they feel pain and learn not to touch it. They are also much cooler as there is more area for warm air to leave.