The 'chaps' style is more of the 'dress up' shirts, sweater and dress coats. Chaps mainly features ralph lauren 'button down' type long sleeve shirts..They only offer two types of the 'polo' style short sleeve shirt, and both of those come with the ralph lauren 'crest' embroidered on the front left chest......The ralph lauren 'polo' is the main line of polo short sleeve shirts that come with the traditional 'polo pony' and the new 'large pony' embroidered on the front chest or side depending on wether it's the small pony or the new large pony..(and of course as you already know the shirt gets its name from the game of 'polo' which is played on horseback mainly by 'high society' people, and the emblem on the front of the true pony shirts is naturally of a polo player riding his polo pony (horse) in traditional polo dress....