They surely were not designed as they arrived.  If they were they should be sold in a clown store.  Size 'Medium' was at least an "X-Large".  And they are beyond pantaloons.  I could have pulled one leg up over my body until they were above my waist.  In addition to all that, the material was very thin, had no body, was like something I'd want to use to polish the last bit of wax off of my car.  I have already received the e-mail from Amazon saying they have received my return.  Great service from them as usual.
The whole experience was laughable.  Figuratively and literally when I tried the pants on.  But it also makes me want to rave about manufacturing being sent to some sweat shop (pun intended) where apparently no one cares about the product.  But then neither did Russell Athletics.  On top of all that it's just boggling for me to think about how they let anything like this get by them and right out into the market.  Maybe some of their products are alright, but it's a gamble I will never take again with Russell Athletics.
Now, Amazon, I say this with love.  Making these sweatpants was not your work, but purchasing them is.  I'd either take on more responsibility for checking the quality and consistency of their products before you add them to your site or dump Russell Athletics as a vendor.  Products like this do not befit the higher standards you work to set.  Fairness aside, shoppers who have experiences like this will take a bite out your reputation and maybe even forget that the product was manufactured by someone else.