Welcome to the Q&A Forum

Hi Luke Griffiths-Jones, The url reflecting the Page title is a good practice and so is maintaining your URl´s as short as possible. In your case you have another option that would keep your url reflecting the page title and at the same time keeping it short (though i wouldn´t worry to much about 80 char more on this https://moz.com/community/q/maximum-length-of-the-url-for-seo-75-115 and https://moz.com/blog/should-i-change-my-urls-for-seo https://www.tumbleandhide.com/newton-leather-wallets-card-holders But if you want to choose between your two options i would go for the first https://www.tumbleandhide.com/collections/newton-leather-wallets-card-holders as the latter doesn´t include some important keywords.