This week in our summer dryland series SYNC Athlete Stef Fleck takes us through the weighted core workout she uses to prep for the toughest World Cup courses. If your summer training program is lacking a serious core burn then take this routine for a spin and get ready to see the results in the course this winter.

*All how-to information is provided by athletes and not trained professionals.


I love these tips/series. It gives me a focus for the season

— Doug Pacetti