Hey everyone,

I've tried a few different commercially-available lightweight sandals, but I found them to be either too bulky, too heavy, or just not comfortable enough. So, I decided to design my own - and share with the community.

These sandals are designed to be:

• (Ultra)light: Weighing in at a mere 80 grams each - you can make them even lighter by reducing the infill and/or top/bottom layers.
• Packable: Super flat (11mm thick) for easy storage in your pack
• Comfortable: A barefoot feel with a comfortable, flexible design.
• Durable: Made from TPU filament for comfort and long-lasting use.
• Superior grip: the sole includes an aggressive tread pattern to provide traction on challenging terrain.

Best of all, they're completely free to download and print at home!

https://makerworld.com/en/models/797936#profileId-737339

Note: This design is sized for a US Men's size 9 shoe. You can easily scale it up or down to fit your size using your slicer software.

I'd love to hear your thoughts on these sandals and any feedback you may have!

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Bill of materials
- Filament: Siraya Tech Flex TPU Filament - 85A Shore (link) - or equivalent. TPU92 works as well.
- Paracord: Paracord 550 (diameter: 4mm)
- Washers (x2): metal, 9/16 OD; 1/4 ID (metric: 14mm OD; 7MM ID)

Assembly:
Prepare the Front Strap:
- Cut a 100mm length of paracord.
- Thread both ends through the front hole of the sandal.
- Slide a washer onto the paracord from the sole side.
- Heat both ends of the paracord with a lighter or heat gun.
- Flatten the heated ends onto the washer using a flat metal tool (ruler). Be cautious to avoid burns.

Create the Top Strap:
- Cut a 520mm length of paracord (adjust to your size)
- Thread both ends through side attachment points.
- Tie a knot to secure the strap (Refer to the included photos for a visual guide.)
- Heat both ends of the paracord.
- Next to the inside attachement point, join the heated ends together to close the loop. Again, be careful not to burn yourself.

Printing parameters
- Walls: 4
- Fill: 11%, Gyroid (increase fill for more strengths, at the expense of weight)
- Enable supports (normal, snug)
- Layer height: 0.2mm
- Bottom/Top shell layers: 3