Biteback Products 'BIFF!'™ Powerful 20% Icaridin Insect Repellent - Horse Fly Midge Mosquito - 1 Litre SPRAY

The product does seem to have some effectiveness however the spray pump it came with doesn’t work.

Great for sensitive horses and actually works! It’s hard to find a fly spray that works and one that is also natural. Would purchase again.

Great fly repellent