Lulu by Roper is a remarkable boot and a great choice for comfort and fashion. This boot is fabricated in 3 different designs. The shaft of the boot is 11 inches and there's a rest insole inside with the rest performance system on the outsole. Peg and nail construction is used on the sole and is single welted. The rest insole (Roper evolutionary step technology) is 100% Removable. Here are some great reasons why everyone is raving over this new insole: -Dual density -high density polyurethane for extended durability -impact absorbing gel pads -performance fabric with antimicrobial protection -dynamic arch support -deep heel cup for superior support The rest performance system is bringing you an entirely new sole! We brought a new hybrid sole to the game making it both leather and rubber.