What does M and F mean? DecathlonCanada 05 May 2021 20:43 Updated Follow Men’s and women’s sizes are provided to help you choose the right size. See our size guide here. Related articles Are your sizes in US or EU? Why can’t I order an item in my province or territory? How can I find out when an item will be available again online? Do stores deliver? Are bicycles delivered assembled? Comments 0 comments Please sign in to leave a comment.