Zappos is offering major deals on select Hoka running shoes this week, including a new discount on select Mach 6 running shoe in men’s and women’s sizes. However, because this is such a good deal, shoes are flying off the shelves.

With this online deal, Zappos customers can get select men’s and women’s HOKA Mach 6 sneakers for as low as $91 instead of its normal retail price of $140. If your size is sold out in the available sale styles, be sure to check back later as more styles will likely drop in price in the future.

HOKA Mach 6 – Men’s

The HOKA Mach 6 is on sale at Zappos in select designs while supplies last.

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According to HOKA, while the Mach 6 can easily be used for everyday wear, it was created specifically for races and everyday runs. All features included in the Mach 6 running shoe are as follows:

• Streamlined collar foam package
• Creel jacquard upper
• Dual internal gusset
• Super critical foam midsole
• Strategic rubber outsole coverage
• Anatomical tongue

“Behold our lightest, most responsive Mach to date,” Hoka’s product description states.

“This lively trainer has been fine-tuned for extra energy return with a super critical foam midsole and updated for enhanced durability with strategic rubber coverage in the outsole. Implementing speed focused design details throughout, we’ve enlisted a new creel jacquard upper with zonal breathability and an internal gusset to deliver the foot-hugging comfort required to set your next PR.”

Those interested in this Zappos deal can checkout the HOKA men’s Mach 6 here and women’s Mach 6 here.