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5.11 Tactical
SKU: TR146 DAR 30 34

5.11 Defender-Flex Slim Jeans

£80.75
VAT Inc
Read our 9.8K reviews
Colour: Dark Wash (649)
Waist/Leg Size

2 in stock - Next day delivery available

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Slim Fit Stretch Denim Jeans with 7 Pockets and Fitted Waistband

Key Features

Lycra T400 Tough Max mechanical stretch denim that flexes with every step and recovers its shape wash after wash.

A streamlined mid-rise slim fit that sits clean under boots and trainers without restricting movement.

Classic five-pocket styling plus two back yoke pockets sized for a phone or spare magazine.

Nylon 6 lining and rivets stop knives, keys and clips wearing through the hand and coin pockets.

A fitted waistband with strengthened loops carries a tactical belt without stretching out.

A button-top fly with a locking YKK zip stays fastened under strain.

The 5.11 Defender-Flex Slim Jeans deliver a modern slim fit in the same durable stretch denim as the rest of the Defender-Flex range. Cotton-polyester denim with Lycra T400 Tough Max mechanical stretch gives reliable flexibility with excellent recovery, so the jeans keep their shape through daily wear and repeated washing.

Five-pocket styling gains two back yoke utility pockets for a phone or magazine, making seven in all, with coin pockets long enough to carry a knife. Rivets reinforce the hand and coin pockets, Nylon 6 lines the front hand pockets, and a fitted waistband with reinforced belt loops accommodates a tactical belt. The button-top fly closes with a locking YKK zip.

Features & Benefits

  • Cotton-polyester denim with Lycra T400 Tough Max mechanical stretch
  • Slim fit with fitted waistband
  • Seven pockets including back yoke utility pockets
  • Coin pockets long enough for a knife
  • Rivet reinforcement at hand and coin pockets
  • Nylon 6 reinforcement inside the front hand pockets
  • Button-top fly with locking YKK zip
  • Double-needle construction with bartacks at stress points

ACTIVITY & USE EXAMPLES

Slim, discreet denim for plain-clothes and off-duty carry, with yoke pockets for a magazine or phone.

A stretch jean with reinforced pockets and belt loops that outlasts high-street denim on site or on the road.

Stretch denim that flexes over stiles and stays comfortable on a long day out.
Why buy from us

As a 5.11 Select Premium Dealer with the UK's largest 5.11 range, we hold the Defender-Flex Slim Jeans for immediate despatch, protected by the full manufacturer warranty. Free delivery is available, next day delivery on request, and returns are no-hassle if you need a different size. Compare the slim and straight fits at our 5.11 UK Flagship Shop in Telford, and our service is rated five stars on Trustpilot.

About 5.11 Tactical

5.11 Tactical built the Defender-Flex platform on Lycra T400 Tough Max denim so that jeans could carry the reinforced construction of its duty trousers. The California-based brand, independent since 2003, now offers the Defender-Flex in slim, straight, regular and bootcut fits for range, work and everyday wear.

Buying Guides

Our Guide to Tactical Trousers

Size Guide

Open the size guide to check sizing and get the best fit possible.

5.11 Tactical Trousers

Short 160–171.5cm | Regular 172.7–184.1cm | Tall 185.4–190.5cm

SizeSmallMediumLargeXL2XL3XL
Numeric28303234363840 42444648
Waist76.23081.3 32 86.43491.43696.538101.640106.742111.844116.846122.648127.650
Hip92.736 1/297.838 1/2102.940 1/2108.042 1/2113.044 1/2118.146 1/2123.248 1/2128.350 1/2133.452 1/2138.454 1/2143.556 1/2
Small28
Waist76.230
Hip92.736 1/2
Medium30 | 32
Size 30
Waist81.3 32
Hip97.838 1/2
Size 32
Waist 86.434
Hip102.940 1/2
Large34 | 36
Size 34
Waist91.436
Hip108.042 1/2
Size 36
Waist96.538
Hip113.044 1/2
XL38 | 40
Size 38
Waist101.640
Hip118.146 1/2
Size 40
Waist106.742
Hip123.248 1/2
2XL 42 | 44
Size 42
Waist111.844
Hip128.350 1/2
Size 44
Waist116.846
Hip133.452 1/2
3XL46 | 48
Size 46
Waist122.648
Hip138.454 1/2
Size 48
Waist127.650
Hip143.556 1/2

Trousers Fit Guide

Looser Tighter
Relaxed
Relaxed

The loosest cut through the seat and thigh, with a straight line down to the leg opening for maximum room to move.

Regular
Regular

A balanced fit with space to move without feeling baggy — straight through the knee to the leg opening.

Straight
Straight

A clean, straight line from thigh to ankle with a slight taper at the leg opening for a tidier finish.

Slim
Slim

Cut close through the thigh and knee, tapering to a slim leg opening for the trimmest silhouette.

Sizing Instructions

How to Measure
Use your chest, neck, and arm length to find the right size for tops and outerwear. Use your waist measurement — where you actually wear your trousers — for bottoms and belts.

Neck
Measure around the base of your neck, where a collar would sit.

Chest
Measure under your arms and around the fullest part of your chest, keeping the tape parallel to the floor.

Arm Length
Slightly bend your elbow. Measure from the center back of your neck, over the top of your shoulder, and down to your wrist.

Pant Waist
Measure around your natural waistline — where your trousers actually sit, not necessarily your narrowest point.

Hip
Stand with your feet together and measure around the fullest part of your hips, keeping the tape parallel to the floor.

Inseam
Measure from the crotch straight down the inside of the leg to your ankle, or to your preferred trouser length.

Sizing instructions diagram
Measurements are approximate — for the best fit, compare against a similar garment you already own.
5.11 Tactical

5.11 Defender-Flex Slim Jeans

From £57.38 £76.50
VAT Exc

The 5.11 Defender-Flex Slim Jeans deliver a modern slim fit in the same durable stretch denim as the rest of the Defender-Flex range. Cotton-polyester denim with Lycra T400 Tough Max mechanical stretch gives reliable flexibility with excellent recovery, so the jeans keep their shape through daily wear and repeated washing.

Five-pocket styling gains two back yoke utility pockets for a phone or magazine, making seven in all, with coin pockets long enough to carry a knife. Rivets reinforce the hand and coin pockets, Nylon 6 lines the front hand pockets, and a fitted waistband with reinforced belt loops accommodates a tactical belt. The button-top fly closes with a locking YKK zip.

Features & Benefits

Colour

Waist/Leg Size

  • 30W : 34L
  • 30W : 36L
  • 28W : 34L
  • 30W : 30L
  • 30W : 32L
  • 32W : 30L
  • 32W : 32L
  • 32W : 34L
  • 32W : 36L
  • 34W : 30L
  • 34W : 32L
  • 34W : 34L
  • 34W : 36L
  • 36W : 30L
  • 36W : 32L
  • 36W : 34L
  • 36W : 36L
  • 38W : 30L
  • 38W : 32L
  • 38W : 34L
  • 38W : 36L
  • 40W : 30L
  • 40W : 32L
  • 40W : 34L
  • 40W : 36L
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