CASTOR Sandals - Beach Sandals, Flat Sandals, Summer Sandals. These leather flip flop sandals are made of 100% Genuine Leather in Natural color that fits with all styles of outfits. Comfortable for feet, Perfect traction: Durable anti-slippery rubber sole with a slightly upraised heel. Materials/Color: 100% calf leather, durable rubber soles/Brown. They will get the shape of your foot since is natural leather. Keep in mind that the color of the natural leather will get darker through time & use due to the aging of the vegetable tanned leather. It is absolutely natural. Avoid getting them wet in sea water because they will get very dark & stiff. There are not water-resistant. Alternative havaianas leather sandals: https://www.etsy.com/listing/242487650/leather-flip-flops-classic-sandals All our Leather Sandals: https://www.etsy.com/shop/LeatherStrata?section_id=17408740 SANDALS - THE PERFECT SUmmER SHOE: Sandals are among the oldest forms of shoes in the world. The word sandals creates an association for airy & light summer footwear that is attached to the leg with straps. Ancient Greek leather sandals are inspired by ancient Greek mythology, while today there are models in different colors & shapes. Some of the leather sandals that our shop offers are: Gladiator sandals, toe ring sandals, lace up sandals, platform sandals, leather flip flops, Spartan/Spartiate sandals, knee high sandals, ankle wrap sandals, & many other types… They are very comfortable, especially in the summer when it’s hot & we need more well-ventilated shoes, and, also, they provide unique style! FEMALE SIZE CHART (EU# // UK# // US# // Length of inner SOLE): EU #35 // UK #2.5 // US #4.5 // 22.9cm - 9.0in EU #36 // UK #3.5 // US #5 // 23.5cm - 9.2in EU #37 // UK #4.5 // US #6 // 24.0cm - 9.4in EU #38 // UK #5.5 // US #7 // 24.8cm - 9.8in EU #39 // UK #6.5 // US #8 // 25.4cm - 10in EU #40 // UK #7.5 // US #9 // 26cm - 10.2in EU #41 // UK #8.5 // US #10 // 26.7cm - 10.5in EU #42 // UK #9.5 // US #11 // 27.2cm - 10.7in ExAMPLE If your foot measures a total length of 25.4 cm (10 inches) then it is the best option to go for an EU #40 // UK #7.5 // US #9 // 26 cm - 10.2 in, as YOU NEED TO ADD 1 cm OR 0.4 inches TO YOUR MEASUREMENT for the space on the front & back of your sandals. If you have ANY concern about your size please also read the following lines! IMPORTANT NOTICE: Keep in mind that the manufacturers use different shoe lasts to construct their shoes, & sizing may vary accordingly. So, the best way to guarantee that you are going to order the correct size for you is to measure your foot & leave the length as a message to the “note to seller”’ with the exact size of your feet. HOW TO MEASURE YOUR FOOT (without any special equipment): Please follow this procedure to help us in order to select the correct size for you. Place your foot firmly on top of the piece of paper. Your leg should be bent slightly & your shin should be in front of your ankle. You can stand, sit