The spring case X-Change mask fits slightly tighter than the contour fit X-Change mask. Please refer to the Sizing Video link below to ensure you receive the correct size mask.

Why do top fencers think that X-Change masks are the best in the world?
Cleaner
The X-Change system allows all the fabric parts to be completely removed from the Stainless steel shell and washed. This keeps your mask clean and fresh.
Lighter
By utilising the lightest strongest materials and removing unnecessary metal it is much lighter than standard masks making it more comfortable.
Cooler The removal of excess padding unnecessary parts of the bib mean that airflow through the mask has been increased by up to 75% compared to some competitors masks. For the ultimate in cooling please see the ice® padding upgrade.
X-Change
The bib can be slid out of the mask which means not only can you wash it monthly or replace it every few seasons.

SIZING
Please see the additional sizing video below. This demonstrates how you can fit a mask by shaping the mesh.
https://www.youtube.com/watch?time_continue=55&v=jbSn22CEfhk