A B3-style aviator jacket has a different fit experience from a thin leather shell because the shearling itself is part of the garment. Dunmire uses natural shearling sheepskin, visible shearling at the collar, cuffs and hem, a buckle collar and a brass front zipper. Check shoulder movement and your intended layer before settling on a size. Explore the current Dunmire Men’s Brown B3 Shearling Aviator Jacket listing for the exact product gallery and available options.
Quick answer: The Dunmire Brown B3 is made from natural shearling sheepskin with a shearling interior, buckle collar, brass front zipper and two outer pockets. Begin with body chest and waist measurements against MOTOGRIP’s men’s jacket chart. Then check shoulder movement and room for your preferred light or midweight layer; do not size solely from a T-shirt fit.
What changes when shearling is inside
Shearling sheepskin carries a woolly surface on the inside, so its texture and bulk feel different from a smooth lined jacket. It can create a close, substantial feel even when the exterior chest measurement appears generous. Try the jacket zipped with the layer you realistically plan to wear. Raise your arms and sit down; do not accept shoulder binding simply because the front closes.
Use the collar deliberately
The buckle collar is a recognizable aviator detail. Fasten or leave it open according to comfort and outfit; never pull the buckles so tightly that the collar distorts. Folded shearling at the cuffs and hem frames the brown exterior. Check the two outer pockets for what you actually carry, rather than assuming they replace a bag.
B3 versus a quilted leather puffer
Dunmire is a shearling sheepskin build with an aviator silhouette. A quilted leather puffer uses stitched chambers and a separate fill. Neither construction implies a specific temperature guarantee without a tested rating. Choose based on preferred interior feel, silhouette, layer space and climate rather than a blanket “warmest” claim. For care, follow the product instructions and use a leather/shearling specialist for difficult cleaning.
Men’s jacket size chart
This is MOTOGRIP’s current men’s jacket category chart in inches, from the size guide. “Body” rows are your body-measurement ranges; “garment” rows are finished category measurements. A category chart is a starting point, not a product-specific measurement guarantee. Check the chosen variant and ask for exact finished measurements when fit is critical.
| Men’s jacket measure (in) | XS | S | M | L | XL | XXL | 3XL | 4XL | 5XL |
|---|---|---|---|---|---|---|---|---|---|
| Chest — garment | 42 | 45 | 48 | 51 | 54 | 57 | 60 | 63 | 66 |
| Chest — body range | 35.5–37 | 38.5–40 | 41.5–43 | 44.5–46 | 47.5–49 | 50.5–52 | 53.5–55 | 56.5–58 | 59.5–61 |
| Waist — garment | 32 | 35 | 38 | 41 | 44 | 47 | 50 | 53 | 56 |
| Waist — body range | 33.5–35 | 36.5–38 | 39.5–41 | 42.5–44 | 45.5–47 | 48.5–50 | 51.5–53 | 54.5–56 | 57.5–59 |
| Center-back length | 25 | 25.5 | 26 | 26.5 | 27 | 27.5 | 28 | 28.5 | 29 |
| Sleeve length | 26.65 | 26.9 | 27.25 | 27.5 | 27.9 | 28.15 | 28.5 | 28.75 | 29.15 |
| Across shoulder | 17.5 | 18.25 | 19 | 19.75 | 20.5 | 21.25 | 22 | 22.75 | 23.5 |
Measure around the fullest chest and natural waist, then compare both body ranges. Also check sleeve, shoulder and centre-back length against a jacket you own. If you are between sizes or plan bulky layers, ask MOTOGRIP for model-specific guidance before ordering.
Frequently asked questions
Is Dunmire genuine shearling?
The active product listing specifies natural shearling sheepskin.
Does it have a front zipper?
Yes, the listing identifies a brass front zipper.
How many exterior pockets are listed?
Two outer pockets are listed.
Should I size up automatically?
No. Measure first, check the men’s jacket chart, and assess the layer and movement you want.
Choose your next step
Review the verified Dunmire Men’s Brown B3 Shearling Aviator Jacket photos, compare your measurements with the chart, and contact MOTOGRIP if a particular layer or fit is important. That keeps the colour, construction and sizing decision grounded in the actual jacket rather than a generic winter-jacket claim.