Detachable Mesh Sidewalls: KEMIMOTO's bimini top replacement stands apart from ordinary boat canopy with its patriotic American flag-patterned sidewalls. These premium mesh sidewalls provide sun protection on both sides while maintaining privacy on the boat. The high-quality breathable fabric ensures optimal airflow, and our convenient zipper system lets you quickly remove the Sidewalls when you want an open-air cruising experience. Premium Marine Grade Fabric: Our bimini top is made of durable marine grade 600D polyester canvas and 600D solution dyed fabric, which is waterproof, UV resistant and tear resistant. This ensures that the boat canopy is extremely strong and can withstand adverse weather conditions. Universal Replacement Cover : This boat bimini top is perfectly compatible with round and square tubes (diameter 1 inch)