Men's Fashion Vest with Cool58® Packs (Medium， Black)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> 97% Cotton </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> The popular Cool58 phase change packs are now available in a design for men that is both fashionable and discreet! </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Lightweight vest featuring Polar Product’s spinal cooling design that lowers weight and increases cooling efficiency. </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Includes eight to ten 5” x 6” Cool58 cooling packs based on the size ordered (see size chart.) </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> The reusable packs deliver comfortable cooling for up to 2-3 hours without requiring a freezer! (Note: cooling times are estimates and will vary depending on climate， body metabolism， and activity.) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41YNY1djRkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41ozEp-1CJL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31UwLxygx5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41rs-4BpdJL.jpg" noproxy>