This is my second pair of these boots (due to a problem with one of the lace tie mechanisms being defective) and they work perfectly.  They are completely waterproof out of the box and break in with ease, not to mention SUPER lightweight.  I wear them regularly, all day long, outside in differing terrain, and I can really tell a difference between these and my other boots at the end of the day.  Less weight will make you less fatigued at the end of the day, not only in your feet, but overall as well.  Great boots!