The lightweight ZigPulse ($100) from Reebok features ZigTech — an advanced zig-zag shaped foam bottom designed to reduce stress to leg muscles by up to 20 percent. Its unique shape is designed to absorb energy at multiple angles while providing a wave of energy that propels each step forward. The ZigTech Pulse also features synthetic leather/mesh upper, breathable fabric lining, padded tongue, collar and footbed, as well as a removable Ortholite foam sockliner.