UGG Men's Hepner Gradient Sneaker Leather Imported The Hepner Gradient is the perfect lace-up to dress-up or dress down. Perf leather upper. Lace-up closure. Leather and textile lining. enerG Comfort system insole. Treadlite by UGG&trade; outsole provides increased traction, durability, cushioning and flexibility. Imported. Measurements: Weight: 11 oz Product measurements were taken using size 9, width D - Medium. Please note that measurements may vary by size.