The Real McCoy's

Underwear, Quilted, CWU 9/P


Free USA Shipping on orders over $100

Is your size out of stock? Click your size to sign up for a back-in-stock alert.

Don't see an item you want from The Real McCoy's?
We can special order any item their catalog.
Contact us more for info.

CWU stands for Cold Weather Uniform, a modular set of technical garments designed for various levels cold resistance by the U.S. Army and Air Force in the early '60s. The 9/P was an intermediate level piece within the greater set, designed for use primarily as a mid-layer rather than an outright jacket.

The insulating properties of clothing are measured by a unit called a Clo. One Clo is equal to 0.18 CM2h/kCal, or approximately one light business suit. A typical outfit for Polar conditions tops out at about 4 Clo, as additional insulation beyond that makes mobility challenging, if not impossible. 

The fabric is a custom nylon, designed to The Real McCoy's exact specifications and with a shockingly soft, almost silky hand to it. The collar and cuffs are knit up in a nylon/wool blend, perfectly balancing comfort and insulation. The body is quilted, which to help hold in place a synthetic fill (that's the part that keeps you warm), and the front closes up with a combination of DOT snaps and a deadstock 1950s Talon zip.

The fit has been tweaked from the original, with a bit more room given to the body, and two bucket pockets attached to the front (for your hands). This updated fit sits less snugly against the body, making for a better jacket - however, it isn't so wide that you can't throw it on under another, larger coat for even more Clo.

Fits true to size. Wash warm and hang dry.

  • Nylon body
  • Nylon/wool knit ribbing
  • Quilted shell
  • Black DOT snaps
  • Deadstock 1950s Talon zip
  • Two handwarmer pockets
  • Single chest pocket
  • True to size
  • Custom labels
  • Wash warm, hang dry
  • Made in Japan
  • MJ21116

See how we measure - click here.

Is your size out of stock? Click your size to sign up for a back-in-stock alert.

All measurements are in inches.

Model Gen wears a size Medium
Gen's sizing specs are:
6'1 and 180lbs
41" chest and 32" waist
Gen has a Clo value of 7

Fits true to size. Minimal shrinkage with cold wash and hang dry.

Size Front Length Shoulder Chest Sleeve Length
Small 25.5" 17.75" 44" 24.25"
Medium 26.25" 18.5" 46" 24.5"
Large 27.25" 19" 47" 25.25"
Extra Large 28.25" 19.75" 49" 26"

Our Oakland and Santa Fe stores are open for cubside pickup. View our curbside pickup info.

Due to USPS service delays, we are shipping most USA orders via UPS Ground until further notice. If you prefer to have your order shipped with USPS, please contact us and we will do our best to accommodate you.

USA Orders

PPE and Bandannas under $100 - $3 via USPS First Class Mail
Curbside pickup: Free
Orders over $100 - Free shipping via UPS Ground
Orders under $100 - $8 shipping via UPS Ground
Expedited Shipping (1 - 2 business days) via UPS - $35

International Orders

Canada Shipping - Orders under $400
USPS First Class (10 - 15 business days)  - $15
USPS Priority Mail (5 - 10 business days) - $30
DHL Express (2-3 business days) - $40

Canada Shipping - Orders over $400
DHL Express (1-3 business days) - $40

Rest of World Shipping
DHL Express (2-4 business days) - $50

We want you to be comfortable shopping with us online without being able to touch the product. Before you purchase, please check the size charts we provide against your favorite garments.

  • Returns will be accepted on full-price items within 14 days of delivery (as verified by courier)
  • A restocking fee of $25 applies to all orders over $500 returned for a refund. The restocking fee does not apply to returns for store credit or exchange.
  • Items sold on sale or discount are final sale, no returns or exchanges.
  • Items must be in original condition with all tags attached.
  • Items that have been washed, hemmed, altered, excessivley worn, set aflame or touched by a private equity firm cannot be returned.
  • All return and exchange shipping costs are your responsibility
  • We will process all returns within 3 business days of receipt
  • Our team will acknowledge receipt and action take with your return
  • If you have questions at any time you can reach us at or use our contact form, or phone us at 510-373-9696.