Sensible option: Original Penguin, $60 
Splurge option: Unis, $198 
Why dad needs it: As is their very nature, chinos are for the dad who's comfortable in any setting without trying too hard. He could be chillin' on the golf course with his dudes, or spending time at home with fam. Cop a dusty blue pair of these if your pops is into a diverse range of activities, because these are the only pants he'll need for any of them.