Cossack Squat (bodyweight, dynamic mover)~200-400KB demo
Showing: Weighted Cossack Squats Male — closest verified demo. Shows the loaded (single-dumbbell, goblet-style) Weighted Cossack Squat — the primer's dynamic-mover version is performed bodyweight-only, as a groove/warm-up rehearsal, not for load.
Wide stance, shift your weight side to side sinking into each hip in turn — groove the pattern, no load, no forced depth yet.