If you have really narrow feet, perhaps a full size larger than your size would be enough? Im not going to reorder. These replacements are perfect and reasonably priced. Para mi sorpresa el pedido llego muy rápido, solo a dos días de haber realizado la compra! Sehr niedlicher rustikaler Pantoffel, hält schön warm, tolle Farben, tolles Material. My feet are also on the narrow/skinny side, so it is a challenge to find strappy & open toe shoes that my feet wont slip through. Great plan and it works for me. Watch a video and study the application instructions, do it in a well lit room and don?t be afraid to peel and retry. Neutral+/- Glossy black plastic build feels a bit cheap but not egregiously so. Highly recommend buying these earphones the sound is fantastic! The arch support is perfect for my feet.