Astronaut Slippers

in Grey Ragg Wool


The Acorn original.

This famous slipper sock has been comforting the feet of astronauts since 1982. They feature a lofty Acorn memory-foam midsole over a comfort cushion layer of featherweight EVA, and durable leather outsole.


  • Lofty Acorn memory foam midsole
  • Comfort cushion layer of featherweight EVA
  • Full grain leather sidewall
  • Suede leather outsole for durable comfort


In 1982, Acorn leveraged the visibility provided by NASA astronauts' use of the Slipper Sock while in space and transitioned Acorn from a cottage business to a high-profile, profitable manufacturer. Since then, astronauts have worn the Slipper Socks on NASA shuttle missions, logging more than 500,000,000 miles in their Acorns. The Smithsonian Institution's National Air and Space Museum has a pair of the slipper socks on permanent exhibit.


  • Ragg wool upper of 85% wool, 13% nylon, and 2% spandex
  • Suede leather outsole
  • Full-grain leather sidewall


Shoe Size
M 7.5 - 8.5
L 9 - 10
XL 10.5 - 11.5
XXL 12 - 13

free & easy returns

Keep what you like. Send back what you don't. Returnable in original condition within 30 days with free return shipping.

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