Re-envisioning Surf Classics with Purposeful Materials. The Authentic VR3 SF remakes our versatile, surf-based lace-up shoe with sustainability-conscious design. Featuring uppers made from organic cotton canvas, an outsole that uses natural rubber, and a biobased foam footbed for comfort you can feel good about, this classic low-top silhouette with a collapsible heel fuses modern and vintage detailing.