Amazon.com: CamKix Diving Lens Filter Kit Compatible with GoPro Hero 5 and Hero 4 Session Camera - Enhances Colors for Various Underwater Video and Photography Conditions : Arts, Crafts & Sewing
Amazon.com : Fotodiox GoTough Silicone Mount with Circular Polarizer (CPL) Filter for GoPro Hero & HERO5 Session Camera : Electronics
Nflightcam Metal Cage and Filter for GoPro Hero Session – Nflightcam.com
Glass ND filter for GoPro Session 4/5 – Camera Butter