Burn calories with this 20 minute all standing HIIT workout. No equipment needed, perfect for a full body sweat session at home. 📱 Download the OSX App: https://joinosx.com/app 🗓️ 7-Day Workout Program + Meal Plan: https://joinosx.com/start Oliver's IG: / olisjostrom Alessia's IG: / alessyvvv