Our review of the Merlin Shenstone 2 Air Cotec Jacket plunges directly into the tangible real‑world advantages and subtle refinements born of serious riders’ feedback. Merlin offers a chameleon‑like adaptability to British weather, augmented airflow via Halley Stevenson’s waxed cotton, and protected comfort thanks to D3O armour and a detachable Humax liner. In my own experience—after months navigating Yorkshire’s capricious climate—this jacket truly distinguishes itself in comfort and flexibility. Merlin has incorporated thoughtful details—mesh panels and armour—into a robust chassis that feels reassuring, not only on smooth highways but twisting country lanes and bustling city commutes alike.

Experience shapes perspective. Years spent testing gear reveal recurring patterns and hidden pitfalls. Merlin’s dedication remedies common issues and sharpens the product for riders who genuinely care. I’ve put hundreds of jackets through their paces over the last decade—on lengthy rides, urban dashes, and everything in between—so my observations draw on both brief jaunts and extended use. Having worn the Shenstone 2 Air Cotec for six months, I’ve discovered how it delivers on its promise of breathability and weather resilience while maintaining a premium feel. But does this Merlin review truly answer your everyday‑comfort and technical‑protection questions, or does it only deepen the mystery?

The Merlin Shenstone II Air Cotec Jacket has earned praise for its versatility—merging a vintage aesthetic with modern features such as D3O armour and a removable waterproof/breathable liner built for varied conditions. Reviewers highlight its outstanding ventilation during hot days, comfort on long rides, and sturdy, high‑quality construction. On the flip side, some users would prefer a zippered inner pocket over Velcro, and a few comment that it isn’t quite as cool as a full‑mesh jacket due to the waxed‑cotton elements.

Today we’re checking out the all‑new Merlin Shenstone 2 Air Cotec Jacket. The Shenstone was already one of Merlin’s most popular models for good reason: they’re a UK brand grounded in wet‑weather, cold‑weather riding culture, reflecting their riding terrain and demographic. When they brought this model to the US market, they offered a mesh‑chassis version yet retained the waxed cotton Merlin is known for—crafting classic British style with functional substance.

Mesh Ventilation

The original featured full mesh taxed by hot climates, but this new version amps things up: the front now features total mesh coverage for enhanced ventilation; Merlin added a CE abrasion‑rating (the prior version pre‑dated the rating system) so you now get full AA‑level abrasion resistance—precisely what many riders want. They bumped the waterproof liner’s breathability from 10K/10K to 10K/15K—meaning better airflow so you won’t feel like you’re riding in a swamp during a summer downpour. All in all, excellent improvements from Merlin—they’re clearly listening to rider feedback, and I think they nailed it.

Sizing

Let’s talk features and sizing: retailing at around $430 (about a $70 uplift), this seems reasonable given the upgrades: full D3 armour, better waterproofing, more mesh, AA abrasion rating. Sizes run from S to 4XL in two colourways—brown and black. Norman is 6′3″, 220 lb, 44″ chest; he usually fluctuates between L and XL, and wears an XL here with liner inside, allowing comfortable movement in the riding position. If you’re on the cusp of sizes and will rarely use the waterproof liner, you might even size down. For fit or sizing questions, customer‑service riders from Merlin are happy to assist.

Chassis

Feature walk‑through: The main chassis is Halley Stevenson waxed cotton, with mesh inserts for airflow. The collar is a single‑snap with leather trim and a micro‑fibre liner for comfort in the riding stance. Outer shoulders contain D3O LP1 armour (CE level 1) at shoulder and elbow, and a CE level 1 D3O Viper back protector is included. The waxed cotton delivers dual‑layer abrasion resistance. Inner sleeves consist of mesh panels—Merlin replaced large Velcro adjusters with cleaner snap adjusters, reducing bulk and potential snagging.

At the waist you’ll find a zipper and snap cuff closure. A note: the snaps may scratch a tank edge at a fuel stop, so be mindful. Zippers are brass‑coated with leather accents, adding to the premium feel. On the chest, the waxed cotton used to dominate; now there’s a full mesh panel—especially useful with a windshield, as the airflow hits there. Two top‑loading snap pockets with brass coating and YKK zippers; the base hem includes a zipper garage to prevent tank scratches. Two hand‑warmer pockets (zippered, mesh‑lined) preserve airflow while stowed.

From the side: No rigid stretch panels—if I were previewing a Shenstone 3 I’d ask for added flex for airbag users and aggressive riding stances. The back view showcases a Merlin stitch logo, waxed‑cotton top section, a large mesh exhaust panel for heat escape, and a reflective upper‑spine pop for rear visibility. The included CE level 1 D3O Viper back protector is a great bonus—five‑piece set right out the box.

Liner

Open it up: Inside there’s the waterproof Humax liner (not destination‑wearable on its own but built for in‑jacket use), a front guard to keep cold air and water at bay, pockets for sunglasses/ear‑plugs, and a short connection zipper plus belt loops to link with pants. Overall, I believe the Shenstone was a great jacket; the Shenstone 2 builds on that legacy—AA rating, full D3 armour, improved breathable liner, increased mesh. There’s a reason riders in Southern California favour this one, and it’s among my top picks for Merlin’s line.

Pros & Cons

Pros

• Adaptability: Performs well in both scorching and soggy weather thanks to a blend of large mesh panels and a removable, breathable waterproof liner.
• Comfort and Fit: Shows improved fit over the initial model; reviewers find it comfortable for daily use and extended rides. Be mindful of sizing—trying it on or referring to the size chart is wise.
• Protection: Equipped with D3O armour and holds a CE AA safety rating.
• Style: Offers an appealing retro look that riders value.
• Quality: Well crafted with premium materials, refined finishings, and subtle branding.

Cons

• Pocket Closure: Some would prefer an inner pocket with a zip instead of Velcro.
• Airflow Limitations: Because of the waxed‑cotton components, it doesn’t ventilate quite like a full‑mesh jacket—though it still performs admirably for its category.