I saw a lady carrying a small GP with a 斜揹帶, is it authenic? what is this mod ...
yes, it's authentic, 1 size down 36cm is 30cm (i m not familiar with GP),i think the sm one maybe smaller than 30cm tim. don't know the price but shd be abt the same as or slightly more than 36cm due to it has a strap.
maybe you can buy shoulder GP, but I think standard ones are nicer. if you wear a thick jacket or for fatter ladies, GP cannot be worn on the shoulder.