we elevated our classic DLYTShirt and added a super breathable COOLmatic | PLUS MIKRAmesh™ fabric back panel to our already breathable four-way stretch, UPF +50 rated, COOLmatic | PLUS SOLOmesh™ equipped performance t shirt. the perfect choice for those sun-drenched summer long runs. flatlock stitching ties together this no fuss, elevated essential.