Hollis SMS75 Complete Sidemount System – Versatile and Streamlined The Hollis SMS75 Complete Sidemount System is designed for both open-water and cave divers who want a streamlined, balanced, and adaptable configuration. With rugged construction and a flexible harness and wing design, the SMS75 provides excellent buoyancy control, comfort, and versatility for all levels of sidemount diving. Streamlined Sidemount Design – Optimized for balance, trim, and minimal drag underwater. Versatile Application – Suitable for both recreational and advanced cave or technical diving. Durable Build – Constructed with heavy-duty materials for long-lasting reliability. Comfortable Harness – Adjustable system ensures a secure, custom fit for every diver. Trusted Hollis Engineering – Proven performance in challenging diving environments worldwide.