Tesla TF-L541-GRY_240 US-6 Men's Lightweight Sports Running Shoe L541 * Alert : Choose 1 size UP ! We Strongly recommend based on customers feedback ex: usual size MEN 7 (D) &gt; MEN 8(D) * 1.5 size up for Customer's with wide feet based on customers feedback. ex: usual size MEN 7 (2E) &gt; MEN8.5(D) **12-07-16 Updated size guide based on customer's comments*