Need a good quality collapsible umbrella for commuting and don't have any idea where to start the search!

My full sized umbrella is 20+ years and in perfect, though faded condition. I paid around $35.00, which was a lot at the time. It is a Black Watch plaid and there are lots of wooden components and a leather wrapped handle. Unfortunately at full sized, this umbrella is too unweildy for my train commute. (I am already shlepping a gym bag and purse.)

Recomendations, please. Spendy is ok. What has worked for you?