Leech Thermofill Heavy

Thermal suit for use under a Leech surviver immersion suit.

Short model: for people with shorter limbs
Tall model: for long-limbed users

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3,500 kr3,700 kr


Free delivery above 500kr  |  Shipping 2-3 days | 

Leech Thermofill Heavy is made of elastic and watertight material, and it provides perfect thermal insulation. It’s made from a four layer material, with Finnfill fibre as insulating layer, and breathable watertight X-Tex membrane as intermediate layer. The surface material is an elastic and smooth tricot fabric, and the inner lining is fleece. The heavy model is designed to protect against extremely cold conditions.

Thermofill insulation is the most distinctive property of Thermofill underwear. Thermofill membrane is developed by the most renowned research institutes and polymere manufacturers.

  • The structure of Leech Thermofill Light insulation is unique.
  • The material does not lose its insulation capacity even after many times of washing.
  • Leech Thermofill Light insulation doesn’t break up like most cotton-wool insulating materials, and therefore it doesn’t get lumpy or flattened with use or after washing.
  • The material also keeps most of its insulation capacity even when completely wet.
  • The suit has vent holes in the armpits and on the left arm to assure free circulation of air inside and outside of the underwear, and to allow air control of the dry suit at any ascent speed.
  • The suit has a zipper with double locks, a arm pocket with zipper
  • Elastic fabric in the collar, sleeves and ankles, and a wide waist band.
  • Thumb loops and leg retainers ease dressing.


This is not a dry suit or immersion suit, but an insulating suit to be worn under one.

  • Short model: made for people with shorter limbs
  • Tall model: made for long-limbed users

S, M Short, M, M Tall, L Short, L, L Tall, XL Short, XL, XL Tall, 2XL Short, 2XL




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