The Wilson D100 Iron is a overhall of the previous Di11 Irons. The D100 iron has a smaller topline and slightly thinner face than the Di11 which has allowed for a nicer looking iron which actaually has a bigger sweet spot to give you more help on those off centre strikes
JamGolf have always had great sucess with Wilsons perfromance iron range and this model still has all the trademark Wilson strengths with distance and accuracey and the thinner face gives the you more feel off the clubface which has sometimes been a criticism of the previous D ranges of irons from Wilson