You could try something like what we wear Off Road Motorbike riding in Asia look at BILT AirCon Gloves or any summer Motorcycle gloves or something like what they use on the mines in hot regions & some how boxes of them appear on our expeditions HexArmor Oasis series ,you will be able to buy them online.
https://www.hexarmor.com/products/chrome-series-4030
The Chrome Series Oasis™ 4030 is a breathable work glove that keeps your hands cool using HexVent® technology, while still providing maximum cut protection using SuperFabric® brand material on the interior of the palm. The exterior of the palm is a printed PVC leather, giving you exceptional grip in dry or light oil situations.
https://www.revzilla.com/motorcycle/bilt-aircon-gloves
BILT AirCon Gloves
The AirCon Gloves from BILT are summer stunners for the off-road rider. Constructed of air-flow mesh with plenty of flex and synthetic suede palms, the AirCon keeps you cool without sacrificing grip or tactile feel. Closure tabs provide an adjustable fit and a touch of silicone grip on the index and middle fingers provides better contact with the controls.
Features:
Mesh air-flow stretch fabric for flexibility
Neoprene knuckle panels for durable comfort
Durable synthetic suede palm
Flexible finger TPR detail
Cuff tab for an adjustable fit
Silicone grip on index and middle finger tips
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