THUNDER PRO GTX - Dark Brown
8
$390.00
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NEW
Excellent cushion, support & flex in a light build
THUNDER PRO GTX - Dark Brown
$390.00
The Thunder Pro GTX excels for fast, stable movement over rough terrain and multi-day outings with heavy packs. The secret to the Thunder Pro's comfort is Zamberlan's new Active Heel Pad (AHP) construction, which strategically positions a low-density PU insert pocketed within the heel of...
SKU: 1210ZBRM
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All orders above $150 will be shipped for free. We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
60-Day Returns & Exchanges
Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, we offer easy returns and exchanges of unused product within a 60-day window.
Need Help?
Not sure which product is right for you? We’re here to help with sizing, fit, terrain, intended use, and care recommendations. Whether you’re heading into the mountains, on the trail, or into demanding work conditions, our team can help you choose with confidence.
THUNDER PRO GTX - Dark Brown
The Details
Best For
Backpacking & Hiking
Weight
590g
Based on size US 8 (Half Pair)
Boot Height
8"
Terrain
Hiking trails & off-trail
Fit
Last Type & Size guide
Fit Guide
With nearly 100 years of bootmaking expertise, we’ve perfected our craft of turning the details of fit into it a true investment in comfort for your feet. We engineer our footwear lasts, fit adaptations, and construction methods to consider all the anatomical features of the foot, as well as the requirements for various end-use applications. In general, you’ll find all Zamberlan boots to be comfortable – not too long, with a good volume – but the specific fit adaptations below will help guide you to the right boot for your needs.
X-Active Fit
Size Guide
The foot plays an important role in supporting the weight of the entire body as well as locomotion. The engineering of our lasts and footwear construction take into account all the anatomical aspects of the foot, making it a true investment in your feet. Zamberlan® engineered different lasts based on the anatomical features of the foot and the requirements for various end-use applications.
Generally, Zamberlan boots are all comfortable, not too long and have a good volume.
Boot Lasts & Size Charts
To find your Zamberlan size, measure the distance from the back of your heel to the tip of your longest toe while wearing socks.
- Place a sheet of paper on the floor and trace your foot with your heel against a wall.
- Measure the outline from the back of your heel to the front of your toes.
- Find this measurement in the chart below for the last of your model. If between two sizes, choose the larger.
- Repeat for both feet and use the size that fits your bigger foot.
Regular Last
ZBPK Performing Fit · Slightly lower instep · Wrapped foot flex point · Tighter heel lock area
| Size | 9" 1/32 | 9" 9/32 | 9" 9/16 | 9" 21/32 | 9" 27/32 | 9" 31/32 | 10" 3/32 | 10" 11/32 | 10" 15/32 | 10" 5/8 | 10" 7/8 | 10" 31/32 | 11" 1/8 | 11" 1/4 | 11" 3/8 | 11" 22/32 | 11" 15/16 | 12" 3/16 | 12" 15/32 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Foot (in) | 9" 1/32 | 9" 9/32 | 9" 9/16 | 9" 21/32 | 9" 27/32 | 9" 31/32 | 10" 3/32 | 10" 11/32 | 10" 15/32 | 10" 5/8 | 10" 7/8 | 10" 31/32 | 11" 1/8 | 11" 1/4 | 11" 3/8 | 11" 22/32 | 11" 15/16 | 12" 3/16 | 12" 15/32 |
| Foot (cm) | 23 | 23.6 | 24.3 | 24.6 | 25 | 25.3 | 25.6 | 26.3 | 26.6 | 27 | 27.6 | 27.9 | 28.3 | 28.6 | 28.9 | 29.6 | 30.3 | 31 | 31.7 |
| US Men | — | — | — | — | — | — | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 13 | 14 | 15 |
| US Women | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 11 | — | — | — | — | — | — | — | — | — |
| EU | 37 | 38 | 39 | 39.5 | 40 | 40.5 | 41 | 42 | 42.5 | 43 | 44 | 44.5 | 45 | 45.5 | 46 | 47 | 48 | 49 | 50 |
Technical Last
ZTEC Technical Fit · Reduced volume in instep · Downturned shape · Pronounced heel to ankle line
| Size | 9" 7/32 | 9" 1/2 | 9" 23/32 | 9" 7/8 | 10" | 10" 1/8 | 10" 9/32 | 10" 1/2 | 10" 21/32 | 10" 25/32 | 11" 1/16 | 11" 3/16 | 11" 5/16 | 11" 15/32 | 11" 9/16 | 11" 27/32 | 12" 3/32 | 12" 3/8 | 12" 5/8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Foot (in) | 9" 7/32 | 9" 1/2 | 9" 23/32 | 9" 7/8 | 10" | 10" 1/8 | 10" 9/32 | 10" 1/2 | 10" 21/32 | 10" 25/32 | 11" 1/16 | 11" 3/16 | 11" 5/16 | 11" 15/32 | 11" 9/16 | 11" 27/32 | 12" 3/32 | 12" 3/8 | 12" 5/8 |
| Foot (cm) | 23.4 | 24.1 | 24.7 | 25.1 | 25.4 | 25.7 | 26.1 | 26.7 | 27.1 | 27.4 | 28.1 | 28.4 | 28.7 | 29.1 | 29.4 | 30.1 | 30.7 | 31.4 | 32.1 |
| US Men | — | — | — | — | — | — | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 13 | 14 | 15 |
| US Women | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 11 | — | — | — | — | — | — | — | — | — |
| EU | 37 | 38 | 39 | 39.5 | 40 | 40.5 | 41 | 42 | 42.5 | 43 | 44 | 44.5 | 45 | 45.5 | 46 | 47 | 48 | 49 | 50 |
Wide Last
ZWL Wide Fit · High instep · Wide foot flex point · Round toe · Wide Achilles tendon area
| Size | 9" 11/32 | 9" 5/8 | 9" 7/8 | 10" | 10" 1/8 | 10" 9/32 | 10" 3/8 | 10" 21/32 | 10" 25/32 | 10" 29/32 | 11" 3/16 | 11" 5/16 | 11" 15/32 | 11" 9/16 | 11" 11/16 | 11" 31/32 | 12" 3/16 | 12" 15/32 | 12" 3/4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Foot (in) | 9" 11/32 | 9" 5/8 | 9" 7/8 | 10" | 10" 1/8 | 10" 9/32 | 10" 3/8 | 10" 21/32 | 10" 25/32 | 10" 29/32 | 11" 3/16 | 11" 5/16 | 11" 15/32 | 11" 9/16 | 11" 11/16 | 11" 31/32 | 12" 3/16 | 12" 15/32 | 12" 3/4 |
| Foot (cm) | 23.7 | 24.4 | 25.1 | 25.4 | 25.7 | 26.1 | 26.4 | 27.1 | 27.4 | 27.7 | 28.4 | 28.7 | 29.1 | 29.4 | 29.7 | 30.4 | 31 | 31.7 | 32.4 |
| US Men | — | — | — | — | — | — | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 13 | 14 | 15 |
| US Women | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 11 | — | — | — | — | — | — | — | — | — |
| EU | 37 | 38 | 39 | 39.5 | 40 | 40.5 | 41 | 42 | 42.5 | 43 | 44 | 44.5 | 45 | 45.5 | 46 | 47 | 48 | 49 | 50 |
Laces Size Chart
Generally, lace sizes correlate to the specific boot. The best way to ensure the correct replacement lace is to measure your existing lace.
125cm — Low cut shoes
150cm — 5" and 6" hikers
175cm — 8" semi-tall boots and larger 6" hikers
190cm — 11" tall boots and larger 8" semi-tall boots
205cm — 11" tall boots, larger sizes
THUNDER PRO GTX - Dark Brown
The Zamberlan Difference
- Recycled Materials
- Waterproof
- Resolable
- Made in Italy
Technologies
Technical Specs & Product Comparison
All the construction detail, plus similar product for comparison
The Basics
Price
$390.00
Gender
Men's
Best for
Backpacking & Hiking
Weight Half Pair (M9/W7)
590g
Boot Height
8"
Flex rating
Cushioning
Fit
X-Active Fit
Last
Regular Last
Insulated
No
Full Tech Specs
Upper Material
Hydrobloc® Perwanger Leather
Upper Thickness
2.0mm - 2.2mm
Foot Protection
PU toe & heel rand
Lining
GORE-TEX ePE Performance Comfort
Lacing
Traditional lacing
Midsole
Recycled EVA Wedge
Insole
2.5mm Nylon + Low Density PU insert + PE
Outsole
Exclusive Vibram® Junko Lite Megagrip®
Terrain
Hiking trails & off-trail
Crampon compatibility
—
Cut protection
—
Anti-static
—
Anti-Perforation
—
Anti-Crush
—
Country of Origin
Italy
Current
The Basics
Price
$350.00
Gender
Men's
Best for
Hiking & Hunting
Weight Half Pair (M9/W7)
540g
Boot Height
6"
Flex rating
Cushioning
Fit
Backpacking Fit
Last
Regular Last
Insulated
No
Full Tech Specs
Upper Material
Hydrobloc® Suede
Upper Thickness
1.6mm - 1.8mm
Foot Protection
PU toe & heel rand
Lining
GORE-TEX ePE Performance Comfort
Lacing
Traditional lacing
Midsole
Dual DensityDie Cut EVA + TPU insert
Insole
Polyester Felt
Outsole
Exclusive Vibram® Hero
Terrain
Hiking trails & off-trail
Crampon compatibility
—
Cut protection
—
Anti-static
—
Anti-Perforation
—
Anti-Crush
—
Country of Origin
Italy
The Basics
Price
$390.00
Gender
Men's
Best for
Backpacking & Hiking
Weight Half Pair (M9/W7)
715g
Boot Height
6"
Flex rating
Cushioning
Fit
Backpacking & Wide Fit
Last
Regular & Wide Last
Insulated
No
Full Tech Specs
Upper Material
Hydrobloc® Full Grain Leather
Upper Thickness
2.4mm - 2.6mm
Foot Protection
—
Lining
GORE-TEX Performance Comfort
Lacing
Traditional lacing
Midsole
Low Density PU Wedge
Insole
4mm Flex + PE
Outsole
Exclusive Vibram® 3D
Terrain
Hiking trails & off-trail
Crampon compatibility
—
Cut protection
—
Anti-static
—
Anti-Perforation
—
Anti-Crush
—
Country of Origin
Italy
The Basics
Price
$400.00
Gender
Men's
Best for
Backpacking & Hunting
Weight Half Pair (M9/W7)
606g
Boot Height
8"
Flex rating
Cushioning
Fit
Backpacking Fit
Last
Regular Last
Insulated
No
Full Tech Specs
Upper Material
Hydrobloc® Perwanger Leather + Cordura®
Upper Thickness
2.2mm - 2.4mm
Foot Protection
PU-coated rubber toe & heel rand
Lining
GORE-TEX Performance Comfort
Lacing
Traditional lacing
Midsole
EVA Wedge
Insole
3mm Nylon + PE
Outsole
Exclusive Vibram® StarLite
Terrain
Rugged backcountry
Crampon compatibility
—
Cut protection
—
Anti-static
—
Anti-Perforation
—
Anti-Crush
—
Country of Origin
Italy
Customer Reviews
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