On those days when you want to keep wind and rain at bay without extra bulk, these Castelli shoe covers are perfect. The thin, stretchy fabric molds to your shoes for an aero - fit while blocking wind and wet. The pros wanted a simple shoecover to keep out wind and as much rain as possible, free from extra weight and bulk. Castelli delivered by removing unnecessary features. The fabric stretches to fit your shoes, keeping wind and water out. A silicone gripper at the top cuff seals water and holds the cover in place. A long zipper makes it easy to put on and take off. High - durability fabric at the bottom adds to its practicality. It's an aero shoecover that effectively blocks wind and wet.

To use these Castelli Aero Race shoe covers, simply unzip the long zipper and slide them onto your shoes. Make sure the silicone gripper at the top cuff is snug around your ankle to keep water out. When you're done using them, unzip and take them off. As for maintenance, you can hand - wash them in mild detergent and let them air dry. Avoid using harsh chemicals or putting them in the dryer. Also, check the silicone gripper regularly to ensure it's still sticky enough to hold the cover in place and seal out water. And remember, these covers are designed to keep wind and rain out, so don't expose them to sharp objects that could tear the fabric.