Why do they assume everyone with the same waist is the same height?

For the last couple months, I've been on a quest of sorts. I've been trying to buy a product that is difficult to find. It's not some complicated piece of electronics, or some exotic car. It's a pair of sweatpants that conform to my specifications.

See, there are two things I want in a pair of sweatpants. The first is pockets - preferably side and back, but I will settle for side. The second is elastic at the cuffs.

Why? Because I'm short and fat. I'm trying to get less fat (which is the main reason I want sweats - to exersize in). But right now, I'm fat. So I wear xxl sweatpants. Manufacturers seem to think that anyone who has a large waist is 8 feet tall, and the pants match. With jeans or khakis, it's worth getting hemmed, but I can't justify getting a pair of sweatpants hemmed. So I need elastic at the leg openings. The zipper-at-the-bottom windpants just don't cut it for me - they are fine if you need an inch or two less, but not so useful if you need them a foot or so shorter.

Until yesterday, I had only found one pair that fit my specs. But I was at Vanity Fair outlets in Reading yesterday, and I figured it would be different. After all, Lee makes a ton of sweatpants. I was even more psyched that they also sold Nautica stuff - I could get a high-end pair of sweatpants, suitable for wearing in public intead of just the gym.

But alas, it was not to be - while they had two nice types of Nautica sweats, one had a zipper bottom and the other had a flat bottom. I did get a cheap pair of Lee sweats, in a rather ugly gray color (the blue I wanted were not in my size).

I've even tried eBay looking for sweatpants that conform to my specs with no luck. I can't believe that I'm the only short, fat person in the world looking for comfortable elastic-waist pants for exersizing, lounging, and going places where I don't care what I look like. I mean, sweatpants were made for fat people - elastic is the fat man's best friend.