Double Collar Sheepskin Jacket
The B3 wasn't designed to look tough — it was designed to keep a pilot alive at altitudes where the air itself could kill you. Standardized for USAAF and RAF flight crews in unpressurized, unheated cockpits, the original B3 relied entirely on thick sheepskin and a storm collar you could buckle up over your nose and mouth. This double collar sheepskin leather aviator B3 bomber jacket keeps that two-part collar system intact — an inner storm collar plus an outer windbreak flap — because it's the detail that actually separates a real B3 silhouette from a fashion jacket wearing its shape.
The shell is genuine, pure sheepskin leather.
The interior lining is faux shearling — a synthetic fur built to give the look and feel of the real thing without the cost of a full double-faced hide. We're saying that plainly rather than leaving it implied, because a genuine leather shell paired with a faux fur lining is a normal, honest construction choice in this category — it's exactly what keeps the jacket's weight and price where they are, and misdescribing it either way helps nobody. Our leather comes from tanneries in Sialkot, Pakistan — a region with generations of leather-making expertise behind it, which is also how we keep jackets like this properly made without a luxury-brand price tag.
Construction details:
- Genuine, pure sheepskin leather shell
- Dual-collar system: inner storm collar + outer windbreak flap
- Faux shearling interior lining, approximately 1.5 inches thick
- Antique brass zippers and buckles
- Pre-curved sleeves with underarm gussets for range of motion
- Reinforced stitching at stress points
- Hidden interior pocket
Sizing:
This sheepskin jacket comes in XS to 5XL size and it run true to size. Given the fitted shoulder and gusseted underarm construction, check our size guide before ordering — a jacket built with this much structure through the shoulder doesn't forgive a size guess the way a looser cut would.
How it's built:
Beyond the collar, this jacket keeps the details that made the original B3 functional rather than decorative — pre-curved sleeves and underarm gussets so the leather doesn't fight your arms at full extension, reinforced stitching exactly where a jacket like this takes the most stress, and a hidden interior pocket for anything you need to keep secure and out of the wind. If you want to see the full range this construction philosophy runs across, our Sheepskin Coat collection and dedicated Aviator Jacket collection both carry pieces built on the same standard.
Genuine leather vs. the alternative, and why it's worth knowing the difference:
A jacket built to look like a B3 and a jacket built like one are two different products, even when the photos look similar. Genuine sheepskin leather develops the creases, texture, and character that made the original B3 an icon — a coated synthetic shell doesn't age, it just eventually cracks. If you want the fuller breakdown of what separates genuine leather from a synthetic look-alike before you buy anything, anywhere, we've written that up in detail on our blog: What is Faux Leather?
Care:
Condition the leather every 4–6 months, particularly at the shoulders and elbows where the pre-curved cut concentrates the most flex. Keep away from prolonged direct heat, which dries sheepskin leather out faster than almost anything else. The faux shearling lining is lower-maintenance than genuine wool — it won't need conditioning, but avoid high heat when drying if it ever gets wet, since synthetic fur can flatten or singe under direct heat sources.
Every order ships with free express shipping and a 14-day return window — full details on our return policy page. If you have questions about fit, the collar construction, or anything else before you order, contact us directly. You can read more about how we source and build every jacket on our Craftsmanship page.
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4. FAQ Section
Is the leather on this jacket genuine?
Yes — the outer shell is genuine, pure sheepskin leather. The interior lining is a faux shearling (synthetic fur), not natural wool. We list this plainly because it's the accurate breakdown of what you're buying, not a downgrade — plenty of well-built jackets in this category pair a genuine leather shell with a faux fur lining.
What does the "double collar" actually do?
It's a two-part system carried over from the original WWII B3 design: an inner storm collar that seals against your neck, plus an outer windbreak flap that folds down over it. Together they block wind at the neck far more effectively than a single collar.
Does this jacket run true to size?
Yes, the jacket run true to size. Check the size guide before ordering — the pre-curved sleeve construction fits close through the shoulder.
How warm is this jacket really?
Genuine sheepskin leather is one of the most effective natural insulators available, which is why it was the material of choice for WWII flight crews at high altitude.
How do I care for the leather?
Condition every 4–6 months, especially at flex points like the shoulders and elbows, and avoid prolonged heat exposure. The faux shearling lining doesn't need conditioning, but keep it away from direct heat if it gets wet, since synthetic fur can flatten or singe.
