RAINBOW SANDALS. 301ALDBS-DBSB. TWISTED SISTER. DARK BROWN SIERRA. You loved the Flirty Braidy -- So we re introducing its Twisted Sister The structure is our single layer midsole with an arch support the box X toe construction is nylon and is sewn using our double stitched pattern with bonded nylon thread. We use the best quality materials so the thread won t fray or pull out. The strap is braided on both sides and has a full braid from one end to the other.