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The Mars Harness 4. 0 Deluxe Climbing Package outfits us with the basics for going vertical, whether we're projecting sport routes or jamming up trad lines. The aluminum Wingman belay device and I-beam carabiner keep rugged strength at a high but weight at a low. When our hands are clamming as we approach the crux, the ergonomic Kangaroo chalk bag gives us easy access to a quick dusting of courage.