Engineered with anatomical design and Targeted Compression, providing a Custom-Like Fit and reduced risk of blisters, plus Ultra Light cushioning takes up minimal room inside the shoe. Fit & Design: Targeted compression and anatomical design provide an unmatched custom-like fit High density cushioning provides cushioned comfort without the bulk Anatomical design enhances fit, delivering maximum comfort and protection by eliminating blisters The Perfect Toe® (No irritating toe seam) 5" cuff is perfect for trail running or cycling