Jffal: Erick's recommendation on the Adidas GSG9 model is a good one, if you want to spend big bucks. They're an issue item for certain SOF units here and abroad. OTOH, GI jungle boots (new black ones w/padded nylon upper) fitted with a GOOD quality sole insert are very servicable and extremely affordable. I've jumped and rucked with them and they do just fine.
Good luck on your choice...