Grubs Treeline 8.5™ Thermal Rated Lined Wellington Boots – VIBRAM Sole

The TREELINE 8.5™ is a practical field boot built for extreme cold outdoor work and adventures. Designed for professionals and outdoor enthusiasts who face sub-zero conditions, it combines serious insulation with rugged durability to keep feet warm, dry, and protected.

• Warmth and insulation: 5mm of light buoyant insulating foam plus 3mm Highloft with a moisture-wicking fleece lining for sustained warmth without overheating.
• Water resistance and durability: Texturised nylon upper with a durable water shedding finish stands up to snow, slush, and damp terrain.
• Moisture management: SUPERDRI™ lining wicks moisture away from the foot and is fungus- and rot-proof to reduce odor over time.
• Underfoot comfort and cushioning: Underfoot Chassis™ provides a stable platform, while the 6mm NITROCELL™ footbed features millions of nitrogen bubbles to insulate from cold surfaces and add soft cushioning.
• Toe and ankle protection: Unique HARD TOE™ technology and reinforced heel safeguard against knocks during daily tasks and rugged outdoor use.
• Traction and grip: VIBRAM® MULTISPORT OUTSOLE delivers lightweight, self-cleaning grip across diverse surfaces—from mud to ice to rocky trails.
• Thermal range and design: Camouflage print upper with a comfort rating from -40ºC to +10ºC, tuned for both harsh cold and milder winter days.
• Brand and heritage: VIBRAM® collaboration and Grubs’ innovation since 2006, ensuring a trusted, high-performance outsole on a rugged rubber boot.
• Fit details: Available in UK sizes 6–12 with leg height around 380–410 mm and calf circumference up to 440 mm, helping you find a secure, comfortable fit.

These boots are built to extend outdoor time in demanding temperatures without compromising comfort. Expect reliable warmth, dry feet thanks to advanced moisture management, and durable protection from rough terrain. The combination of a protective toe, reinforced heel, and high-traction outsole means fewer interruptions due to cold, damp, or unstable footing—so you can focus on the task at hand or your next expedition.