The Radians SV59-2 Type R Class 2 Heavy Duty Surveyor Safety Vest is a heavy-duty option for contractors and surveyors. It features a large back pocket for plans and is made of durable ANSI 107 Hi-Viz material with reinforced wear points and web reinforcement along the edges. The vest has a mesh upper front and back for breathability and comfort. And there are pockets made of tough woven twill fabric for maximum durability.