calling4life
Well-Known Member
I don't know if I read all of this.
Does anybody use or recommend the altitude training masks? Some of them have several levels of adjustability so you can start out easy and then make things more difficult.
Do they help, do they help a lot, seems like it may be a great tool to use while a guy is out training with his backpack on...
Does anybody use or recommend the altitude training masks? Some of them have several levels of adjustability so you can start out easy and then make things more difficult.
Do they help, do they help a lot, seems like it may be a great tool to use while a guy is out training with his backpack on...