Glacier Tek cooling vests are ideal for people with medical conditions that make it difficult to cope with the heat. Such conditions include multiple sclerosis, ectodermal dysplasia, cystic fibrosis, myasthenia gravis, thermogenic anhidrosis, lupus and migraine headaches. Managing heat is an especially serious problem for paraplegics and quadriplegics. Whatever your cooling challenge, a Glacier Tek vest will help you stay sharp and stay active.