I bought these Van Heusen waffle pants for lounging in autumn/winter. I went for a medium size - even though the size chart told me to go large - because such items are usually quite loose. I'm glad I did as they are quite loose, the waist is comfortable and stretchy (it can be tightened with drawstrings if needed) and the fabric is stretchy. The material is basically similar to the waffle material in long underpants, only they have a looser fit. They are comfortable and I recommend.
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