It probably blocks out 50% of noise on average, best with low-pitched noise, not so good with higher pitches. Im 56" 175lbs and it fits me well and get a good lower back workout. air force 1 white junior size 3 Purchased these for 8-year old. 0 are the best earphones ive owned in terms of comfort, Ive spent up to 5 hours with them on at a time without feeling any discomfort at all, or ever having them fall out of my ears. air force 1 white junior size 3 Just installed these for our 2 bikes. air force 1 white junior size 3 Read before you buy. Something is not right with sole design. He weighs about 50lbs. air force 1 white junior size 3 The whole package is more than what I need and the price is just right. But, as these are 1st gen ear buds it needs some improvements.
air force 1 white junior size 3