Fully waterproof bootie construction with sealed seams and waterproof materials.
Cold-weather rated to withstand extreme temperatures down to -32°C (-25.6°F).
Cuffable shaft allows for versatile winter styling and temperature regulation.
Temperature-regulating and moisture-wicking UGGplush interior lining.
Energy-returning EVA midsole minimizes foot fatigue during extended wear.
White Spider Rubber outsole delivers superior traction on unpredictable ice and snow.
Upper: Premium waterproof leather and waterproof suede.
Lining and Insole: UGGplush blend (upcycled wool and lyocell fibers).
Midsole: Lightweight, shock-absorbing EVA foam.
Outsole: High-traction White Spider Rubber compound.
| US Men’s | Heel to Toe (IN) | UK | EU | Japan (CM) | Mexico (CM) | China (MM) |
|---|---|---|---|---|---|---|
| 3 | 8.3 | 2 | 36 | 21 | 21 | 210 |
| 4 | 8.7 | 3 | 37 | 22 | 22 | 220 |
| 4.5 | 8.9 | 3.5 | 37.5 | 22.5 | 22.5 | 225 |
| 5 | 9.1 | 4 | 38 | 23 | 23 | 230 |
| 5.5 | 9.3 | 4.5 | 38.5 | 23.5 | 23.5 | 235 |
| 6 | 9.4 | 5 | 39 | 24 | 24 | 240 |
| 6.5 | 9.6 | 5.5 | 39.5 | 24.5 | 24.5 | 245 |
| 7 | 9.8 | 6 | 40 | 25 | 25 | 250 |
| 7.5 | 10.0 | 6.5 | 40.5 | 25.5 | 25.5 | 255 |
| 8 | 10.2 | 7 | 41 | 26 | 26 | 260 |
| 8.5 | 10.4 | 7.5 | 41.5 | 26.5 | 26.5 | 265 |
| 9 | 10.6 | 8 | 42 | 27 | 27 | 270 |
| 9.5 | 10.8 | 8.5 | 42.5 | 27.5 | 27.5 | 275 |
| 10 | 11.0 | 9 | 43 | 28 | 28 | 280 |
| 10.5 | 11.2 | 9.5 | 43.5 | 28.5 | 28.5 | 285 |
| 11 | 11.4 | 10 | 44 | 29 | 29 | 290 |
| 11.5 | 11.6 | 10.5 | 44.5 | 29.5 | 29.5 | 295 |
| 12 | 11.8 | 11 | 45 | 30 | 30 | 300 |
| 13 | 12.2 | 12 | 46 | 31 | 31 | 310 |
| 14 | 12.6 | 13 | 48.5 | 32 | 32 | 320 |
| 15 | 13.0 | 14 | 49.5 | 33 | 33 | 330 |
| 16 | 13.4 | 15 | 50.5 | 34 | 34 | 340 |
| 17 | 13.8 | 16 | 51 | 35 | 35 | 350 |
| 18 | 14.2 | 17 | 52 | 36 | 36 | 360 |
If you are unsure which shoe size to purchase, please follow the below steps:
1. Draw a straight line longer than your foot on a piece of paper.
2. Place the paper on a flat surface. Stand on the line with your heel and longest toe centered.
3. Place a mark on the line at the tip of the longest toe and at the back of the heel.
4. Repeat steps above for the other foot.
5. Measure the distance between the marks. Taking the larger of the two measurements, use the conversion chart to find your correct shoe size.

The UGG Men's Adirondack Boot XXV is a premium, high-performance winter boot engineered to deliver superior protection and reliability in the most severe cold-weather conditions. The upper is constructed from high-quality, waterproof leather and waterproof suede, backed by a fully waterproof bootie construction with sealed seams. This sophisticated design ensures that the feet remain completely dry when navigating through heavy slush, deep snow, or torrential rain. A versatile cuffable shaft allows for customizable styling and temperature regulation, while a gusseted tongue effectively prevents snow, debris, and moisture from penetrating the boot's interior. This footwear effortlessly merges the rugged durability required for outdoor expeditions with a modern, masculine aesthetic perfectly suited for daily urban winter wear.
Internal comfort and thermal insulation are paramount in this robust design. The boot is fully lined with a plush, temperature-regulating UGGplush wool blend, providing an impressive cold-weather rating of up to -32°C (-25.6°F) to keep feet comfortably warm in extreme freezing temperatures. Underfoot comfort is driven by a lightweight, shock-absorbing EVA midsole that significantly reduces foot and joint fatigue during long winter hikes or extended daily commutes in harsh weather. The foundation of the footwear relies on the proprietary White Spider Rubber outsole, which features an aggressive, strategically designed tread pattern optimized to deliver maximum traction, stability, and grip on slippery, icy, and snow-covered surfaces. The Adirondack Boot XXV is the ultimate solution for demanding winter environments.
Fully waterproof bootie construction with sealed seams and waterproof materials.
Cold-weather rated to withstand extreme temperatures down to -32°C (-25.6°F).
Cuffable shaft allows for versatile winter styling and temperature regulation.
Temperature-regulating and moisture-wicking UGGplush interior lining.
Energy-returning EVA midsole minimizes foot fatigue during extended wear.
White Spider Rubber outsole delivers superior traction on unpredictable ice and snow.