Swiss Link British Multi-Cam UBAC Shirt Unissued, Large

The Swiss Link British Multi-Cam UBAC (Under Body Armor Combat) shirt is genuine British military new-old-stock surplus, unissued and never fielded, available in Large only. Unissued means the shirt left the military supply chain without being worn or deployed; it may show light storage marks but has not seen service use. The Coolmax body wicks moisture, and a full-season Permethrin treatment repels insects for up to one year of normal washing.

Built to Wear Under Armor

The UBAC cut is engineered specifically for use beneath body armor, keeping the profile low and the fabric from bunching where a plate carrier sits. Less fabric movement means less chafing and fewer pressure points under load, which matters on long patrols or extended days in the field. The quarter-length front zipper lets the wearer adjust ventilation quickly without removing gear.

Moisture Management and Bug Protection

The Coolmax construction pulls sweat away from the skin and moves it toward the fabric surface, where it evaporates. That transfer is a meaningful advantage during high-output activity in warm conditions. The factory Permethrin treatment adds a layer of insect repellency that persists through repeated laundering for approximately one year under normal washing conditions, reducing the need to apply topical repellent in tick or mosquito country.

Arm Pockets and Padded Sleeves

Each sleeve carries a dedicated pocket and integrated padding. The arm pockets provide accessible storage for small items such as a map section, a tourniquet, or a pen, without requiring the wearer to reach across the body or open a chest rig. The padding adds a degree of impact protection at the elbow, which is useful during prone shooting positions or movement through rough terrain.

Features

• Multi-Cam pattern: British military issue camouflage on a Coolmax body
• Moisture-wicking fabric: Coolmax construction moves sweat away from skin
• Permethrin treatment: factory-applied insect repellency lasting approximately one year of normal washing
• Arm pockets and padding: one pocket and padding per sleeve
• Quarter-length front zipper: quick ventilation adjustment without removing gear
• Button cuffs: adjustable wrist closure

Specifications

Who This Is For and Isn't

This shirt suits overlanders, hunters, and outdoor users who want a genuine British military surplus base layer in Multi-Cam, particularly those operating in warm conditions or insect-heavy environments where moisture management and Permethrin treatment add real value. It is well-suited to anyone who wears a plate carrier or chest rig and needs a low-profile shirt that won't bunch underneath.

This shirt is available in Large only; buyers needing any other size cannot be accommodated from this listing. Because this is a finite unissued surplus lot, restock cannot be guaranteed once stock is exhausted. The Permethrin treatment is factory-applied and not user-removable; buyers who require untreated fabric should not purchase this shirt.

Common Questions

What does "Unissued" mean for this shirt?

Unissued means the British Multi-Cam UBAC shirt is new old stock that left the military supply chain without being worn or fielded. It has not seen service use. Light storage marks such as minor creasing or a faint warehouse odor are possible, but the shirt has never been worn in service.

What is a UBAC shirt and why does the cut matter?

UBAC stands for Under Body Armor Combat. The shirt is cut specifically to be worn beneath a plate carrier or body armor vest, with a low-profile silhouette that reduces bunching and pressure points under load. The quarter-length front zipper allows ventilation adjustment without removing armor or a chest rig.

How long does the Permethrin treatment last?

The factory Permethrin treatment on the British Multi-Cam UBAC shirt is rated to last approximately one year under normal washing conditions. Permethrin is bonded to the fabric rather than applied as a spray, so it persists through repeated laundering within that timeframe.

Is this shirt available in sizes other than Large?

No. This listing covers Large only. The British Multi-Cam UBAC shirt in this unissued surplus lot is not available in any other size through this listing, and because surplus lots are finite, additional sizes cannot be guaranteed.