Men Brown B3 Aviator Shearling Jacket
People buy shearling for the material, but a large part of why a B3 works is where it closes. Insulation only helps if the warm air stays inside, and the openings — neck, wrists, hem — are where it escapes.
-
Material: Genuine shearling sheepskin
-
Fit: Regular fit, generous by design
-
Closure: Front zip with collar straps
-
Color: Brown with natural cream wool
-
Care: Brush the wool, wipe the hide, specialist cleaning only
Why the openings matter more than the thickness
A jacket loses heat two ways: through the material, and out of the gaps. Thick insulation solves the first. Only the closures solve the second, and in wind the gaps matter more — moving air pulls warm air out of a loose cuff far faster than it passes through the hide.
That is why the B3 pattern closes at every opening. The collar straps pull the throat shut. The cuffs sit close at the wrist. The hem is snug at the waist. Fasten all three and the jacket becomes a sealed envelope; leave them open and you lose much of the benefit.
It is also why people sometimes report a very warm jacket feeling cold — almost always because it was worn open.
The construction underneath
One sheepskin, tanned with the fleece attached: hide outward blocking wind, wool inward trapping air, no separate lining and no seam between shell and insulation. Wool also keeps insulating when slightly damp, unlike down.
Fit, wear and honest notes
Take your normal size — the pattern already allows for the fleece. A fine knit underneath is normally enough.
Honest points: heavy and bulky, both of which are the warmth. A reproduction-style fashion jacket rather than military surplus, with no genuine service insignia. Avoid heavy rain, never dry it near direct heat, and use a specialist sheepskin cleaner.
Made to order, XS to 5XL and custom
Made after you order in XS to 5XL, plus Custom — chest, shoulder, sleeve and back length. Free shipping, secure checkout, and honest pricing on genuine sheepskin.
Shop Related Styles at Leather Outlet
Related: B3 Leather Bomber Jackets for black and hooded versions, Shearling Jackets for the wider range, Flight Jackets for lighter leather aviators, and Men Leather Jackets for everything else. Browse at Leather Outlet.
Frequently Asked Questions
Why do the closures matter so much?
In wind, moving air pulls warm air out of loose openings far faster than heat passes through the hide. Sealing them is most of the benefit.
Why does my warm jacket feel cold sometimes?
Almost always because it is being worn open. Fasten the collar, cuffs and hem and the difference is immediate.
Is the shearling real?
Yes — genuine sheepskin tanned with the wool attached.
What are the collar straps for?
They pull the wide collar shut at the throat. Unbuckled, the collar folds back.
Should I size up?
No. The pattern already allows for the fleece thickness.
Is it military surplus?
No. It is a reproduction-style fashion jacket with no service insignia or issue history.
Do you offer custom sizing?
Yes — XS to 5XL plus Custom to your own measurements.
Up close