Finis Snorkel Cardio Cap<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Designed specifically for the Adult &amp; Jr. Swimmer's Snorkel </span></li><li><span class="a-list-item"> Increases the ability of muscles to work better when oxygen levels are low </span></li><li><span class="a-list-item"> Replicates Higher Altitude Workouts </span></li><li><span class="a-list-item"> Increases lung workout load by 40% </span></li><li><span class="a-list-item"> Aid in forced inhalation and exhalation </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41sJAgO2c2L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/81-htNRwA7L.png" noproxy>