OTTO CAP 6 Panel Low Profile Mesh Back Trucker Hat, Key Product Features. Low Profile - Shallow crown for a relaxed, casual fit Mesh Back - Provides enhanced airflow and breathability Plastic Snap - Premium durable closure for a secure fit and easy adjustment Structured Front Panels - Full buckram construction delivers a firm, defined shape that holds its form for classic comfort Standard Cotton Twill Sweatband - Provides soft, reliable comfort all day long