In terms of length, the flip flops were designed with a reasonably ‘snug / tight’ fit in mind. If you go too big in terms of length, the orthotic does not sit in the correct position on the foot. It is important to note, that it is a concern if some of the back edge of the heel hangs over the edge of the flip flop (as per the below image).
Of course, if your heel is completely over the edge of the heel cup and squashing down on the rim of the flip flop, then that is different, however, some heel overhang is ok. Again, the most important thing is that the flip flop is comfortable and the orthotic sits in the correct position on the foot.
Please see the image below of acceptable overhang.
Please see the image below of too much overhang.
Archies Flip Flops are unisex Flip Flops, we do not have a separate size system for men and women. Archies Flip Flops sizing runs very true to your normal US running shoe size (for both men and women), so we suggest to select that for your size.
If you are often different sizes in different brands, or if you have any doubts as to which size to choose and or you simply want to confirm your size selection, then we suggest to measure your foot length using the instructions below and check the recommended corresponding size via the Archies Flip Flops size conversion chart.
Using your normal ladies running shoe size, simply use the size conversion chart to help you choose your Archies Flip Flops unisex size. If you do not own a pair of running shoes, just select your most common ladies shoe size.
The sizes that are marked on the bottom of the Flip Flop are unisex sizes. E.g – If you order a Unisex 7 (Size US Men’s 7 / US Women’s 8), the Flip Flop you will receive will be marked with the unisex sizes (US 7 UK 6 EURO 40), however, it will be the exact equivalent of the women’s size (US 8 UK 5.5 EURO 39).
This does not change anything with regards to ordering. You can see the equivalent women's sizes in the size conversion chart and they are already converted for you at the checkout.
Using your normal men’s running shoe size, simply use the size conversion chart to help choose your Archies Flip Flops unisex size. If you do not own a pair of running shoes, just select your most common men’s shoe size.
The sizes that are marked on the bottom of the Flip Flops are unisex sizes which are the exact same as men's sizes. E.g – If you order a Unisex Size 10 (US Men’s 10 / US Women’s 11), the Flip Flop you will receive will be marked with the men’s sizes (US 10 UK 9 EURO 45). So just order your normal US men's size!