Made of heavy-duty nylon. Thick padding sandwiched between layers of material, which helps keep the diabetic supplies in good condition. zippered pockets on top for storing lancets, testing strips, alcohol and other diabetic testing accessories. A flap in the middle has 2 pockets and slots to lancing device and insulin pens.(Please note this bag doesn't keep pens cool.) removable storage pouches in the bottom are used to blood glucose meters and glucose . (The pouches are fastened by adhesive straps, which make them stable.) Compact Size: 8.9" x 5.5" x 1.75". Also comes with a detachable hand strap for convenience. Good for daily use or keeping in the backpack on vacation.