La Sportiva Womens Nucleo High II GTX Hiking Boots - Breathable

Our review of the La Sportiva Womens Nucleo High II GTX finds it ideal for hikers who want a waterproof mid-height boot with unusually good breathability. The single biggest reason to buy is the Gore-Tex Surround membrane paired with nubuck leather, which keeps feet dry from the outside while allowing heat and sweat to escape so long days on the trail stay comfortable. Tested on rugged terrain, the boot balances protection, cushioning and traction without feeling overly heavy for a supportive pack-friendly hiker.

Key Features

• Waterproof Gore-Tex Surround: Provides full waterproof protection while letting heat and moisture escape for cooler, drier feet on long hikes.
• Nubuck leather uppers with Nano Cell inserts: Deliver durable abrasion resistance and targeted breathability where it matters most for comfort and longevity.
• Vibram Nano XS-Trek sole: Large, well-positioned lugs give confident grip on wet rock and loose dirt so descents feel more controlled.
• Compression molded EVA midsole with stiffener: Cushions steps and adds support for hiking with a pack, reducing fatigue over multiple miles.
• 3D Flex ankle hinge: Reduces break-in time and improves mobility around the ankle without sacrificing protection.

Who It's For

The Nucleo High II GTX suits day hikers and light backpackers who want a durable, waterproof boot that breathes better than typical membrane boots; it is particularly good for hikers who encounter mixed wet and warm conditions. Users who value long-term comfort and ankle mobility will appreciate the 3D Flex hinge and supportive midsole.

Those who need a minimalist trail runner or an ultra-heavy alpine boot should look elsewhere: this boot occupies the middle ground between lightweight trail shoes and full mountaineering boots. If you require extremely low weight for speed hiking, a lighter option would be a better fit.

Pros & Cons

Pros

• Outstanding breathability for a waterproof boot thanks to Gore-Tex Surround, keeping feet cooler on long hikes.
• Durable nubuck uppers and Nano Cell inserts offer a good balance of protection and ventilation.
• Vibram Nano XS-Trek outsole gives secure traction on varied terrain and wet surfaces.
• Supportive midsole with stiffener reduces foot fatigue when carrying a pack.

Cons

• At 16.8 oz (476 g) the boot is not the lightest option, so ultralight hikers may prefer something lighter.

Specifications

Brand	La Sportiva
Model	Nucleo High II GTX
Waterproofing	Gore-Tex Surround membrane
Upper	Durable nubuck leather with Nano Cell inserts
Outsole	Vibram Nano XS-Trek with large lugs
Midsole	Compression molded EVA with stiffener insert
Weight	16.80 oz (476 g)

Our Verdict

The La Sportiva Womens Nucleo High II GTX is a strong choice for hikers who need a waterproof, breathable mid-height boot that offers durable protection and reliable traction. It represents good value for those who prioritize foot comfort and breathability on multi-hour hikes, while its supportive midsole makes it suitable for light backpacking.

Frequently Asked Questions

Are these boots fully waterproof?
The Gore-Tex Surround membrane provides full waterproof protection while allowing heat and sweat to escape for added comfort.

Do they run wide or narrow?
The model is available in both medium and wide widths to accommodate different foot shapes and improve long-distance comfort.

Are they suitable for backpacking with a pack?
Yes; the compression molded EVA midsole with a stiffener insert provides extra support for hiking with a pack on longer outings.