Gold standard compression

  • Description
  • Benefits
  • Indications
  • In Practice
  • Evidence

urgok4Gold-standard compression therapy:

  • 4-layer compression bandage system
  • Provides a pressure of 40 mmHg at the ankle
  • Also helps manage recalcitrant “hard to heal” ulcers
  • Improves venous return


KSoftLayer 1: K-Soft (sub-compression wadding, viscose, polyester)

  • Allows for even distribution of pressure and helps to protect bony prominences.
  • Non-woven, with a good absorbency and fluid retention, extra resilience and cushioning.
  • Soft, conformable and comfortable.




KLiteLayer 2: K-LITE: light support bandage type 2 (viscose, polyester, elastane)

  • Base for compression – modern fibre construction offers exceptional comfort and conformability.
  • Knitted with 2-waty stretch for excellent conformability
  • Maintains original position with no slippage.




KplusLayer 3: K-PLUS: light support bandage type 3a (viscose, elastane)

  • First compression layer, providing a sub-bandage pressure of up to 20 mmHg at the ankle.
  • May be used on its own over sub-bandage wadding or as the third layer in the K-Four multi-layer compression bandage system.
  • Washable and reusable.



KoFlexLayer 4: KO-FLEX : cohesive long-stretch bandage (acrylic, cotton, elastane, cohesive material containing low levels of natural latex)

  • Provides 17 – 20mmHg pressure to obtain an average 40 mmHg at the ankle as the top layer of the UrgoK4 / K-Four compression system and maintains the bandage system in place.
  • Cohesive nature ensuring that the UrgoK4 / K-Four bandage system stays in place for up to 7 days.
  • Contains low levels of natural latex.
  • Washable, reusable and tearable, avoiding wastage.


Specific to the 25-30cm and 30cm+ UrgoK4 / K-Four kits

K-THREEC: type 3c high compression bandage:

  • Provides the extra pressure necessary in the 25-30cm and 30cm+ kits to ensure the correct application of 40mmHg for larger ankles (Ref: LaPLace’s Law) (viscose, elastane)

Mode of action

UrgoK4/K-Four provides the gold standard average pressure of 40mmHg applied by four layer compression bandaging recommended in the healing of venous leg ulcers.

This website is an international website. Some products or sizes can therefore be unavailable in some countries. For more information, please contact us.

Benefits for the wound

  • Good absorption of exudate
  • Uniform pressure avoids high pressure points
  • Accelerates the rate of healing

benefits-for-professionnalBenefits for health professionals

  • Application of the correct pressure (circa 40 mmHg) at the ankle
  • Improved healing of venous leg ulcers
  • Pressure maintained for up to 7 days
  • High absorbency
  • Provides “Gold standard” compression therapy
  • Choice of ready-to-use kits for different ankle sizes
  • All kits for ankle > 25cm ankles contain longer length bandages

benefits-for-patientBenefits for patients

  • Improved healing of venous ulcers
  • Massage effect when walking (low resting pressure, higher pressure on walking), helping to improve venous return and oedema reduction
  • Comfortable to wear
  • All kits for ankle > 25cm ankles contain longer length bandages

Urgo K4/K-Four is indicated for the treatment of venous leg ulcers and the reduction of associated chronic venous oedema (i.e. patients with an ABPI > 0.8).


  • Arterial conditions (arterial or predominantly arterial ulcers; known or suspected arterial disease)
  • Ankle Brachial Pressure Index (ABPI) < 0.8.
  • Patients suffering from diabetic microangiopathy, ischaemic phlebitis, septic thrombosis.
  • Ulceration caused by infection
  • Allergy to any of the components – in particular latex


Instructions for use

Before applying the bandages:

  • Examine the shape of the leg and identify any areas at risk of excessive pressure (i.e. bony prominences)
  • Protect and reshape leg with wadding (K-Soft) if necessary. If a wound is present, apply an appropriate dressing before applying any bandages.
  • Measure the ankle circumference and choose the correct kit accordingly (ankle size 18-25cm, 25-32cm or >30cm+).
  • It is preferable to apply the compression system first thing in the morning or after the patient’s legs have been elevated for an hour to minimise any orthostatic oedema.
  1. Apply K-SOFT in a spiral up the leg with 50% overlap from toe to knee. If necessary, K-SOFT can be torn and applied over the bony prominences to offer extra protection.
  2. Apply K-LITE in a spiral up the leg with minimal stretch and a 50% overlap. K-Lite is not included in the 25-30cm kit
  3. Apply K-PLUS in a “figure of eight” up the leg with 50% stretch and 50% overlap using the central blue line as a guide (not applicable for the 25-30cm kit).
  4. Apply KO-FLEX in a spiral up the leg at 50% stretch and 50% overlap. Press down gently to ensure full cohesion

If any component is found to be longer than required when the knee is reached, remove the extra length. Do not over-wrap the bandage below the knee as this will increase the donated pressure.
Bandages may be left in place for up to 7 days.

Precautions for use

  • Check that the ABPI > 0.8 using Doppler ultrasound before prescribing the bandage system.
  • In the event of diabetes, heart failure or advanced micro-vascular disease, the compression system may be used with close medical monitoring following appropriate treatment.
  • If peri-ulcer infectious dermatosis, treat infection before commencing treatment with the compression system.
  • If the ulcer is from rare aetiology (vasculitis, haemopathy, pyoderma gangrenosum etc.) the compression system should only be used following specialist referral.
  • The UrgoK4/ K-Four kit is designed for single use only.
  • Store away from light and heat.
  • K-SOFT and K-LITE are not washable.
  • K-PLUS and KO-FLEX may be washed up to 5 times at 40°C – air dry flat.

Sizes available

Available for ankle size: less than 18cm, 18-25cm, 25-30cm, >30cm.


  • Size less than 18 cm contains 2 K-SOFT, 1 K-LITE, 1 K-PLUS, 1 KO-FLEX;
  • Size 18-25 cm contains 1 K-SOFT, 1 K-LITE, 1 K-PLUS, 1 KO-FLEX;
  • Size 25-30 cm contains: 1 K-SOFT, 1 K-THREEC, 1 KO-FLEX.
  • Size > 30 cm contains: 1 K-SOFT, 1 K-LITE, K-THREEC, 1 KO-FLEX.
    • K-SOFT (10cm x 3.5m or 4.5m);
    • K-LITE (10cm x 4.5m);
    • K-PLUS (10cm x 8.7m or 10.25m);
    • KO-FLEX (10cm x 6m or 7m);
    • K-THREEC (10cm x 7.8m).


This website is an international website. Some products or sizes can therefore be unavailable in some countries. For more information, please contact us.
BJN-136-Smith-J-6pp-web JWC-96-Vowden-KR-4pp-web1 JWC-v10-n5-K-four-bandage-4pp-web

Evaluation of Urgotul® plus K-Four® compression for venous leg ulcers

Comparison of the healing rates and complications of three four-layer bandage regimens The K-Four bandage system: evaluating its effectiveness on recalcitrant venous leg ulcers
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Last update : February 28, 2021