Toe spacers?

There is room, but you need to develop muscle tissue, then your joints will align automatically. Try to massage your feet instead, pull your toes into position.

Can I wear these shoes, if I have problematic feet (flat feet, bunions, shortened limb etc.)?

Off course, even if they aren't consisting of any orthopedic structure, they still provide the healthiest possible environment for your feet, as they regard all the attributes of feet's functionality and have quality supporting structure.

Shipping time

For Slovenia it's 3 business days, Europe about 5-7, elsewhere 10-17 + possible customs period.

Questions & Answers

Will I really be stronger and faster?

There are a few evidences that barefoot movement is both more efficient and has a greater output performance compared to athletic shoes.
In contrast, first time barefoot for too long will probably get you allot of nausea, so be patient.

Why didn't human civilization wore foot shaped shoes before?

People didn't know how to produce shoes right through the history. I for example use technologically advanced materials like foamed rubber, fiberglass and toluene resin, but also machines for that matter.