Back by popular demand and available here at John Bull Clothing, the Montane Mens Extreme Smock returns as one of the most iconic cold-weather garments ever made.

Originally launched over 25 years ago, and proudly sold by John Bull back then, this legendary smock has been a staple of the British Army and outdoor professionals who demand reliability in the harshest conditions.

Constructed from windproof, highly breathable Pertex Quantum outer fabric and combined with a fast-wicking, deep-pile lining, the Extreme Smock provides outstanding comfort and warmth in freezing environments. Its design ensures moisture is effectively drawn away from the skin, keeping you dry and regulated whether you’re on exercise, mountaineering, or trekking through the hills.

Often compared to the Buffalo Mountain Shirt, the Montane Extreme Smock is widely regarded as a benchmark for performance layering without compromise. With reinforced stress points, practical pockets, and an adjustable hood, it’s built to withstand years of demanding use in the field.

This is more than just a jacket – it’s a piece of history reborn. Trusted by soldiers, climbers, and adventurers for decades, the Extreme Smock stands as proof that true classics never fade – they just come back stronger.

Product Specification
• Colours: Moss Green, Black and Hot Chilli Red
• Features - water resistant, Pockets, Reflective, Hooded, Zip pocket, windproof, Full Zip, Warm
• Pertex Quantum - Highly windproof, breathable and fast drying classic 6 outer shell.
• DRYACTIV 3000 - A deep pile lining throughout jacket that provides warmth, wicks sweat, dries fast and helps to retain body warmth even when wet.
• POLARDRI - Reinforced tough elbows pads. Tough nylon 6.6 rip-stop woven complete with waterproof membrane (10,000mm hydrostatic head)
• Articulated Arms - For reach high movement and tailored specifically to reduce hem lift.
• Fully Adjustable and Removable Pile Lined Hood - Compatible mountain hood with three point adjustment and wired peak.
• Soft Fleece Beard guard - Around the face and mouth for extra comfort and protection from the elements.
• Kangaroo Chest Pocket - Large zipped front chest pocket suitable for maps or phones etc
• Pockets - Two deep A-line hand-warmer pockets positioned well clear of backpack or climbing harness belt, and a chest pocket for handy essentials in the mountains.
• Sleeve Pocket - Essentials pocket with hook & loop closure
• Zipped Side Vents - Two way YKK Natulon recycled zipped side vents with storm flaps
• Reflective Details - Ensuring you stay visible in low lighting conditions.
• Half Length YKK Zip - Recycled centre front 1/2 zip
• Adjustable Cuffs - Featuring grab tabs for ease of use with gloves or mitts.
• Adjustable Hem - Helping to prevent spindrift entry and heat loss.
• Weight: 965g (approx.)

New John Bull Products – Innovative and In-Demand Kit