Over the last two decades, lululemon went from an obscure (yet appealing) yoga brand to a global sports brand juggernaut, only bested by the biggest brands in the industry such as Nike and Adidas. Thankfully, its "women's first" approach has never gone away and is represented by Lululemon's first-ever running shoes, the Blissfeel, a colourful number built from scratch based on scans of over a million feet.The Blissfeel is a women's running shoe and very much reminds me – in philosophy – of the Adidas Ultraboost 22. Instead of using a unisex last somewhat tailored to women's needs, Lululemon researched and developed a new last which they spent four years designing to create running shoes specifically designed for women's anatomy.Should Adidas and Nike be afraid? Maybe.