Comfortable all-day carry is achieved with 3D Spacer Mesh Fabric. Special channels allow for more efficient airflow, increasing comfort (in comparison with elastic bands). An Open-Air Weave Construction design provides holes for air/moisture to pass through naturally hindering bacterial growth. Maximum breathability keeps you cool and dry! Soft Medical Grade Hook & Loop construction ensure no chaffing. A self-laminated fastening end is cut/trimmed with scissors for a custom fit. No need for melting, binding, or stitching to prevent it from fraying.