Description Create a colorful custom giveaway that will kick your branding into gear. Bicycle seat covers are made of flexible, durable and long-wearing nylon material with an elastic seam that secures to bike seats of all sizes. The material is water resistant and protects from birds, inclement weather and sun exposure. Bike Seat Covers are compact and lightweight for direct mail promotions or race event registration mailings. Includes a full color imprint perfect for duplicating team, event, or school logos.