How is the sizing?

Overall, OMM clothing tends to be on the "fitted" side of things. The fabrics are designed for performance use and often work best close to the skin while reducing drag and bulk when you're moving fast.

OMM uses three different fits in their clothing range; Contact Fit, Fitted & Regular Fit. This gives you an idea of how the product is intended to look and fit. Some of OMM's clothing is unisex fit, so it's often best to go down a size for women.