This is the instructional & follow-along video for 2024 X15, a progression from X9 (return to that if needed). See companio PDF's for workout outline & training calendar. Please ask any questions & make your post-workout report in the comment section below.

BONUS Custom Interval Timer:
https://www.intervaltimer.com/shared/4MhnGjrdRxCQzwJTHRlj-X15