Sports Authority offers the Nike Men's MetCon 1 Cross-Training Shoes in six colors (Gym Red/Black/White pictured) for $99.98. Coupon code "FIT20" drops them to $79.98. With free shipping, that's the lowest total price we could find by $40. It's available in sizes 7 to 15, although not in all size/color combinations.

Also available is the Nike Women's MetCon 1 Cross-Training Shoes in Hyper Orange/Black/Grey or Black/White/Hyper Jade for $79.98 with free shipping via the same coupon. That's the lowest total price we could find by $40. They're available in sizes 6 to 11, although not in all size/color combinations.