2 ounces lighter than before more form fitting more storage up front and with the same capacity the timothy olson race vest rocks materials 150g knit mono mesh new 150gsm harness conforms to your body for absolute comfort and superior load carrying 180g darlington power mesh lightweight strength with differential stretch in the x and y axis for enhanced load management silnylon66 silicone impregnated 30d nylon with a polyurethane face creates a permanently waterproof fabric and subst