Honey- if a borzoi can not get out of a martingale, a pug cant. also a harness will rub more on his chest. It also splays the shoulders and spreads the front in a young dog.
Try this- and remember- other companies make them smaller. Another option is a show martingale collar made for toy dogs. http://www.orvis.com/store/product_c...id=91XA&bhcp=1 .