Sanuk Flip Flops - Sanuk Yoga Mat Flip Flops - Gunmetal :: Women > Flip Flops. Tread gives good grip on natural and artificial surfacesMaterials: Upper: Synthetic. Lining: Jersey. Outsole: SyntheticStraps is supportive and durableJersey liner is soft next to the skinSynthetic leather upper is extremely comfortable to wearMade from yoga matsWomen's flip-flops Size: UK 03,UK 04.