I also own a beige coloured pair. These shorts are very comfortable for cycling, great for all day use if you don't want the Lycra look, while the detachable padded liner provides the comfort you would expect from a more sportive look. You also have the confidence that, being designed for cycling, there will be no uncomfortable seams in the wrong place, and little risk of an embarrassing wardrobe failure. You can of course wear them with any undergarments as the liner is detachable. 

I have a pair of these in size medium. I'm 1.80 tall and 72kgs. They are very well sewn and have so far refused to wear out, which is a shame because they are absolutely hugely oversized and I don't believe they represent a medium sized human male body. Even more perplexing is the badly mismatched liners which are ball crushingly small. I'm always one to look for the positives and I can now do a pretty fair Robin Gibb singing Massachusetts so I guess its not all bad, but I definitely can't wear them on the bike, or sing Massachusetts on the bike either for that matter.