For Time
1,000 Box Step-Ups (20 in)
Wear a Ruck Pack (45/35 lb)
Complete 1,000 Weighted Box Step-Ups as fast as possible (“For Time“). Use a 20-inch Box and wear a Ruck Pack that weighs 45/35 lb for men/women.
If I was training for SAR I would do this with no music or anything and I would wear as similar a pack as the one on selection.