Most importantly

On-the-fly Vertical Tuning - accommodates different goggles and head shapes for a custom fit free of gaper gap

MEMlex EVA with soft injected EVA cushion and “Rock Guard” extra density wedge + TPU anti torsion stabilizer at the rear Last: Ergonomic

Spektris mirror coating

The two color versions

black diamond 10mm dynex runner 120cm 28446 Most importantlyBlack Diamond 10mm Dynex Runner 120cm 48inch. An essential part of any alpine climber's rack, Black Diamond Dynex Runners are indispensable for building anchors, slinging natural features or extending placements to reduce rope drag. This highly abrasion resistant, lightweight material won't weigh you down and absorbs less water than nylon, making it perfect for big routes and snowy or icy terrain. Each size is also color coded for quick and easy