OTM stands for OFF THE MATSThe OFF THE MATS ranked rashguards is the perfect lightweight flip flop to toss in your gym bag or as an essential as your everyday footwear in summer. Rubber sole with polyester fabric lining for comfort Vibrant print Black Y-shaped rubber straps Toe post style rubber sole for grip lightweight & takes up very little space in luggage or gym bag unisex 3 sizes available Size:SmallUS men 6-7US Women 7-8EU 36-38UK 5 - 6MediumUS men 8-9US Women 9-11EU 39-41UK 6.5 - 8LargeUS men 10-11US Women 11-12EU 42-44UK 8.5 - 11For actual product size please see size chart in the images *For international orders, a quote will be emailed to you after you place the order. The shipping charges will be based on country and total weight of the order* Approx £5.50 shipping worldwide