Casual Trail Runner Julie Sheaffer Reviews the La Sportiva Cyklon

La Sportiva and BOA are American Trail Running Association corporate members.

Courtesy of ATRA member BOA, we gave away several pairs of La Sportiva’s new Cyklon to see what our members think about these highly engineered and innovative trail running shoes. After her new shoes into the woods for a spin, New Jersey based trail runner Julie Sheaffer shared with us her impressions of the BOA powered shoes.

“I finally got a chance to get a couple of runs in with my new La Sportiva Cyklon trail shoes. Soooo … I really love these shoes! The fit and feel is awesome. My favorite part of trail running is negotiating through technical terrain.”

Dialed In

About the the Dynamic Cage™ built in to the shoes upper Sheaffer wrote “with other shoes I’ve tried, it sometimes felt like my foot was going in one direction and my shoe was not quite keeping up. With these shoes it felt more like dancing through the rocks in ballet slippers.”

Locked In

Sheaffer was also a fan of BOA’s L6 Dial writing “with the way that you can dial the laces in tiny increments, the way the laces are positioned on the shoes, and the suppleness of the uppers, the Cyklons fit like a glove and feel like part of my foot while also providing plenty of support. They also make you feel really light and fast, which is fun!”

La Sportiva Cyklon men’s colorway.


The mud-ground tread, ideal for use on soft and muddy ground, is in ultra-grippy La Sportiva FriXion™ White compound. According to Sheaffer, “during my run it was hot, humid and muddy but I had plenty of traction in the slippery sections and didn’t feel like the soles were too stiff.”

“Thank you so much for the shoes American Trail Running Association, they really are awesome. I’ve got races coming up and I can’t wait to really put them to the test!”


According to BOA, the La Sportiva Cyklon represents years of collaboration and development and is designed to go the distance on the trails. Reimagining the shoe upper in BOA®’s Performance Fit Lab, the BOA Fit System activates the Dynamic Cage™ for a micro-adjustable fit that locks in the heel and creates a better connection to the midsole for confidence on technical terrain and steep descents.

“Leveraging our findings in the Agility and Speed validation study, we worked with La Sportiva to ensure the Cyklon provided revolutionary fit and performance. Together we created the Dynamic Cage, powered by the BOA Fit System, to meaningfully improve endurance and agility.”

Dan Feeney, PhD. Manager of Biomechanics Research, BOA Technology Inc

ATRA member Julie Sheaffer.

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