Workout DAY 2 STANDING HIIT | 2-4 WEEK SHRED/HIIT WORKOUT CHALLENGE | BURN CALORIES 🔥 By admin - November 6, 2020 0 106 Facebook Twitter Pinterest WhatsApp Hey guys! We are starting a brand new challenge! It’s going to be 6 videos, 2 rest days and then you repeat this for 2 weeks total or 4 weeks MAX. Day 2 is a … source