An essential bike commuting accessory, O2 Calhoun Rain Pants are waterproof, breathable, and lightweight. I love rain pants. I wear them in cool whether to protect my jeans from my bike saddle. I wear them with jeans and leggings to go sledding. You can keep them in your bag just in case. They are such a great piece of clothing. These O2 Rainwear ones are very nice.