If you ride anywhere, you'll know how precious the space is in your backpack. If you want something to wear off the bike, shorts and flip flops can be a great fix in a squeeze.
In a discussion on backpack real estate, I mentioned my recent discovery of TOMS and how I love my espadrilles. The minimalist canvas shoes are light, airy, quirky and great to flatten down into a small backpack when I'm out on my bike... oh and for every pair purchased, a pair is given to a child in need of shoes.
There's a bit more on their 'One for One' programme here.
What's your backpack commute shoe?