Provides legendary support and performance. Start fast and finish strong on the heavy-duty shock absorption and legendary support that make the original Superfeet GREEN their most famous insole. Provides high profile support and high volume fill. There is no industry standard for footwear sizes. For example, a size 8 by one footwear manufacturer might be different from a size 8 produced by another. That’s why Superfeet makes full-length insoles in size ranges (typically spanning 1½ sizes) to handle the variations. You may need to trim your insoles to fit in your footwear.