Don't let knock-offs fool you! There is no substitute for the Alpha Shock. Replacing half-sole shoes, the Alpha is durable and effective compression footwear with a snug hug in the toes. It is so light you forget you are wearing it except for how much better your body feels at the end of the day. We recommend you have a pair WITH traction for class and NON-traction for recovery...but you will probably want a pair for every day of the week! *Always consult with your doctor if you have any contraindications in wearing compression garments.