ASICS FUJI LITE 4 Asics FUJI LITE 4 men’s trail shoes are designed with an emphasis on surface traction. FF BLAST™ cushioning in the midsole provides lightweight impact shock absorption for optimal comfort on even the most challenging terrain. The redesigned outsole now has a lighter construction and provides better traction. These improvements help improve traction on difficult terrain. ASICS FUJI LITE 4