Updates to La Sportiva Stream GTX

  • La Sportiva’s Stream GTX is ideal for those who wish to hit the trail with as much agility and airy comfort as possible. Its upper’s ventilation system is a collaboration between the boot’s Nano Cell 2.0 technology and Gore-Tex’s Surround technology. 
  • The boot’s compression-molded midsole comes engineered with the STB system—a company-exclusive tech that gives more stability and flexibility. It is also crafted with aeration channels courtesy of Gore-Tex for extra breathability. 

Size and fit

A mid-cut boot offering a fairly true-to-size fit for male and female day hikers is the Stream GTX from La Sportiva. It is targeted at individuals with regular-width feet. It is listed in half and whole sizes. The women’s version is built around a type of last that follows the contours of the female foot. The boot’s closure system provides a secure and precise fit.


Wearers are promised a responsive kind of surface traction with the Stream GTX’s multi-lugged Vibram XS Trek outsole. It has been optimized to strike a balance between longevity and grip effectiveness. It has also been engineered in a way that contributes to the boot’s overall comfort and stability. 

Over at the heel is La Sportiva’s Impact Brake System (IBS). This brand-owned technology is responsible for enhancing the outsole’s braking power. It also decreases impact forces received by the outsole. 


What offers footing balance and ground protection on the trail is the La Sportiva Stream GTX’s sturdy yet cushy EVA midsole. The STB technology with which it is engineered places TPU inserts or stabilizers on its medial section and lateral sidewalls for enhanced flexibility and stability. Its sides are engineered with Gore-Tex Surround aeration channels, lightning-shaped vent holes that double down on breathability.  

Sitting securely atop this feature-rich midsole is the gear’s 5-millimeter Ortholite footbed. It offers extra underfoot comfort thanks to its adequately padded construction. 


The Stream GTX puts breezy comfort into the forefront by having an abrasion-resistant mesh upper that is imbued with a breathable technology, called Nano Cell 2.0. The Gore-Tex Surround serving as the boot’s liner further bolsters breathability while preventing intrusive water from getting in. Its heel and toe zones are wrapped in PU Techlite, making the gear even more resistant to abrasion-inducing hazards. Rounding out all things upper is the Stream GTX’s quick lacing system which features a pair of open hooks at the top. 


The current trend of La Sportiva Stream GTX.
Compare to another shoe:
Paul Ronto
Paul Ronto

Over the past 20 years, Paul has climbed, hiked, and ran all over the world. He has summited peaks throughout the Americas, trekked through Africa, and tested his endurance in 24-hour trail races as well as 6 marathons. On average, he runs 30-50 miles a week in the foothills of Northern Colorado. His research is regularly cited in The New York Times, Washington Post, National Geographic, etc. On top of this, Paul is leading the running shoe lab where he cuts shoes apart and analyses every detail of the shoes that you might buy.