Thank you for viewing! This item is unopened. Size: L Material: Silicone Features: Non-slip, rainproof, dustproof, durable, high elasticity. Not easy to wear out. Foldable waterproof shoe covers, lightweight, easy to carry, and can be easily put into your shoes or bag. A perfect choice for unexpected rainy days. Not disposable, environmentally friendly, odorless. A necessity for students and office workers. Often used for travel and exercise. The non-slip function also makes them suitable for mountain climbing.