TJM Design Cool Fan Fuga a 2023 upgrade that lets you breathe even when wearing a Powerful airflow around the lasting approximately 8 hours on high

For spring/summer 2023 Upgrade: Fan-equipped pad for harness users Large air volume up to 76L/s fan & compact, lightweight 13V Three air vents that direct air to the neck (upgraded: reduces air vent collapse and maintains airflow) Stand-up collar design directs airflow from the vents to the neck area (upgraded: stand-up collar padding added for excellent airflow) Highly elastic, durable, and breathable 3D mesh / Detachable holder included