https://www.dritz.com/sites/default/files/tutorials/espadrilles-adult-pattern-english.pdf - and I had to print as poster and piece together
And for kids: https://www.dritz.com/sites/default/files/tutorials/espadrilles-kids-pattern-english.pdf
You can buy the soles on Amazon - http://www.amazon.com/s/?ie=UTF8&keywords=dritz+espadrilles&tag=googhydr-20&index=arts-crafts&hvadid=77884950051&hvpos=1t1&hvexid=&hvnetw=g&hvrand=5474465212884766872&hvpone=&hvptwo=&hvqmt=b&hvdev=c&ref=pd_sl_8w2cv98iot_b
But on these I'm just using a flip flop. A regular needle will go through the rubber. You just have to wear a thimble and two rubber finger grips to grab the needle.
I'm putting shoe inserts inside. I am trying to sew these with embroidery thread (6 strand), but it isn't working so well. I need upholstery thread or two layers of buttonhole thread.
But I see red polka dots and navy stripes this summer!