I don’t know how they reach these measurements. Just know that because the bag tapers rapidly as you move from bottom to top, there is less space than you think. Love the color and polka dots, strap, fabric, and light colored lining. I pared down and managed to get my essentials in but no wallet, glass case, tissue pack, or phone will fit inside. Don’t like: There is no zipper closure of the one main compartment and things will fall out if your purse tips over; small size; monkey (discarded it immediately!) I prefer Baggalini brand, but they still haven’t changed their straps, and they slip off my shoulders. Live Light Bags, seller, raised the price as soon as I put it in my cart, and charged mailing, and I figured the seller wouldn’t let me return it. I would give it 3.5-4 stars if the seller hadn’t raised the price. Baggalini has more organization, design is better too. I would never pay full price for these bags because of the size and lack of security of your items. I did contact the seller about the mailing charge, and they claim that they only pay shipping on “promotional bags”, but I found shipping fees on all of their bags under $40 dollars or more. That said, it shipped Fed Ex from Virginia to the middle of the country and arrived before it was scheduled to arrive. I don’t expect I will buy another Kipling bag.