Corrugation (noun): a wrinkle; fold; furrow; ridge.
The Corrugation mitts are worked from the bottom to top, with a subtle ridge at the outside of the arm and hand. They are suitable for men as well as women, and are given in a range of sizes.
The pattern gives a table for stitch counts and measurements per size. You then fill in the numbers and measurements that refer to you throughout the pattern.
They be worked 2AAT (two-at-a-time) or one only, using circular needles for magic loop or DPN's - just what you prefer.