One white and one black pair of trainers with minimal detailing is all you need, with the neutral color ways enabling you to pair them with more formal pieces, if required.
Look at getting a pair of neutral boat shoes for the summer and a pair of leather loafers for the winter – your clothing isn’t the only thing that needs to adapt to each season.
A pair of brown suede deserts boots will see you through any season. Also consider investing in a great pair of leather boots for winter weather – black, brown or burgundy are all great options.
Try experimenting with the types of looks you integrate your casual footwear into. As long as the design remains simple, classic and versatile there’s no reason why they can’t be utilized in more formal outfits.