CapSole is a reusable, airtight shoe bag designed to extend your shoes’ lifespan up to 20 additional years by preventing yellowing and material degradation. The system seals out oxygen and moisture, then injects a proprietary preservative to create a protective atmosphere that replaces damaging air inside the bag.

Lab testing demonstrated that CapSole can double the lifespan of sneakers by significantly delaying yellowing and deterioration—equivalent to preserving condition for up to 20+ more years when used properly.

Yes. CapSole conducted over400 hours of accelerated aging tests (years of actual wear), following ASTM G155‑21 cycle 12 conditions. One Nike Air Force 1 was preserved inside a shoe bag while the other remained exposed. Results showed a 2-3X less discoloration and degradation in the preserved shoe.

Absolutely. CapSole’s method is “Flex, Preserve, Protect.” Use CapSole only when sneakers are not in use. Shoe bags are reusable and easy to integrate into your rotation. Refill only when the bag is reopened and resealed.

Yes. CapSole offers a subscription option (CapSole Club) that lets you receive shoe bags and cartridges every 1 month, 3 months, or 6 months with free shipping. Please see the subscribe & save options under the Grail Kit, Collector Kit, and Legacy Kit.

CapSole offers a free 30‑day return window and 1‑year warranty, especially on shoe bags.