While not strictly mandatory, wearing long sleeves on safari is highly recommended in 2026 for both health and safety reasons. Long sleeves provide a vital physical barrier against UV radiation during long morning and afternoon game drives in open-top vehicles. More importantly, they offer protection against insect vectors like mosquitoes and Tsetse flies, which are most active at dawn and dusk and can transmit diseases like Malaria or Sleeping Sickness. Many professional safari garments are now treated with permethrin, an insect repellent that lasts through several dozen washes. Additionally, in regions with dense "bush" or during walking safaris, long sleeves prevent scratches from thorny acacia trees. For the best experience, choose light-colored (khaki or olive), breathable fabrics like linen or moisture-wicking synthetics to stay cool while remaining fully protected.