Portable EVA Insulin Bag Cooler is made of EVA material and Pu leather with food-grade aluminum lining not only helps to protect your supplies, but it also provides effective insulation to keep your diabetic care products cool below 8ºC (46.4ºF) for 6-8 hours. Portable EVA Insulin Bag Cooler is the ideal solution for short trip and outing—have confidence that it safely carries vials, needles, eye drops and diabetic supplies. It is portable and convenient for carrying glucometer, pens and vials； Durable,waterproof outer and inner, and give a long service life; Aluminium inner lining good for protecting and waterproof；