THE ROGER Centre Court

Speed lacing: Elasticated laces that you don't need to tie. Slip your shoes on and off with ease and speed. Tip: If you need a tighter fit, just retie the knots at the ends.

Standard lacing: Classic shoelaces, keeps your feet secure.

Hook and loop fastener: Used to secure powerstraps on our shoes. Press together to close, pull apart to open.

Star lacing: A lace looped in a star-crossed shape keeps you extra secure in the shoe, providing stability and support. For more lacing techniques, read thisarticle.

Laceless: Slip-on, second-skin fit.

Heel to toe drop is the difference in height between the heel and the forefoot. In a shoe with a drop of 7 mm, your heel will sit 7 mm higher than your forefoot. Shoes with a lower drop tend to place more load on the ankles and are generally better for midfoot and forefoot strikers. Shoes with a higher drop tend to place more load on the knees and hips and generally better for heel strikers.

How heavy an individual shoe or product is.