I am thinking of wearing a blue polo shirt and chinos, brown loafers to a co-worker's outdoor housewarming party, to be held in June. I am not that fond of chinos and polo shirts, but want to look respectful and courteous. Am I going "underddressed"? I like a more fashion forward look with featured jeans and a tee shirt, but with this group, that's not going to happen. What would you recommend by way of an alternative to the polo look? I was thinking of a fashionable dress shirt, longsleeves, and brown loafers, but is the Polo too casual for a party attended by colleagues and competitors??? Thanks guys!