Merino wool 16.5mc


LASTING – 100% the Superfine Merino Wool 16.5 mc
The super fine merino wool LASTING comes from specially bred sheep living in Australia. Owing to the fiber diameter of 16.5 micrometers (microns, µm), this merino wool has considerably better isolating feature and permeability than the common wool. It is also finer and softer to touch. Owing to a unique natural consistence of the wool fiber the Woolsens underwear doesn’t support the bacterial growth and thus it doesn’t smell bad even when worn for a longer time. Our merino wool yarn is MULESING FREE certified.

Main reasons for choosing the LASTING MERINO WOOL base layer:

 100% natural material
- High-grade permeability
- Maximum comfort owing to excellent moisture elimination.
- The fine Merino wool causes no scratching or itching.
- An excellent thermo isolation owing to many tiny air bags between the fibers.
- Flat seams for a comfortable feeling.
- Natural wool fiber is more fire resistant than synthetics.
- Perfectly processed knitted fabric and high elasticity for ideal mobility.


Light 160 g - flat fine knitted fabric
Products made of this 16.5 micron 100% merino wool knitted fabric suit as the base layer next to the skin. This fabric has an excellent soft touch and is very permeable and comfortable.  It can be used in almost every sporting activity including hiking, skiing or running in cold weather.

Heavy 260 g - double face fabric
Double layer knitted fabric is suitable as the mid layer in freezing weather. We recommend 160g next to skin layer and 260g mid layer.

Common wool, which has a fiber diameter of 30 microns, is uncomfortable for most people. The diameter of the fiber is directly proportional to the level of itching that you feel. Underwear made from merino wool with a fiber diameter of 18 – 22 microns is more comfortable then underwear made from regular wool, but sometimes it will still itch. LASTING underwear is made from carefully selected SUPER FINE MERINO WOOL with a fiber diameter of only 16.5 microns. This is the finest merino wool that breeding farms produce at the moment. Choose the best from nature and enjoy the great properties of wool fibers without the itching.

Advantages of Merino wool:

As soft as silk – The finest types of Merino wool (SUPER FINE) have threads with a fiber diameter of 16.5 micrometers (microns), i. e. 0,016 millimeter. For comparison: human hair has a diameter of  100 micrometers.
Thermoregulatory ability – The woollen textile material creates a microclimate on the body, which means that in the winter it keeps you warm and in the summer it keeps you cool.
Sweat transport – The surface of the wool fiber is hydrophobic, therefore it repels sweat.  Sweat will evaporate, or if held back (for example by a layer of clothes), it will soak inside the fiber, which is by contrast hydrophile. The interior of wool fiber can hold up to 30% of its weight in moisture without the wool fabric feeling damp or clammy.  Even fully damp fiber stays dry to the touch and at the same time keeps its ability to thermoregulate.
Permeability - Woollen textile is breathable even when worn under layers, this feature makes it possible to evaporate the moisture in the fiber quickly.  Permeability is ensured by irregular surface structure of woollen fiber, which is formed by microscopic flakes.
Antibacterial ability – Wool is composed of 90% protein (keratin).  It binds itself to harmful substances including viruses and bacteria and limits their proliferation.  Woollen clothes do not smell, even after being worn multiple times. Therefore you do not have to wash them as often.
Wool is non-allergenic –  It is a misconception that some people are allergic to wool.  Medically speaking, wool is not an allergen.  There are no noted  allergic reactions to wool.  What is sometimes  called an ''allergy“ is in reality just sensitivity.  People with sensitive skin feel uncomfortable wearing wool with a high micron thickness.  Merino wool is extra fine, and super fine (16 micrometers).  It has a soft as silk touch making it comfortable to even the most obstinate opponents of wool.
Wool protects from UV radiation - Many synthetic fibers do not have this ability.
Hollow fiber – Merino wool is a natural hollow fiber.  Therefore, it is semipermeable.

Size chart

Mens (Unisex)

Height 5′3″-5′4″ 5′4″-5′5″ 5′6″-5′7″ 5′7″-5′9″ 5′9″-5′10″ 5′11″-6′0 6′0″-6′2″ 6′2″-6′3″
Chest perimeter 31-32″ 32-35″ 35-37″ 37-39″ 39-42″ 42-44″ 44-47″ 47-50″
Waist perimeter 24-26″ 26-28″ 28-31″ 31-33″ 33-35″ 35-38″ 38-42″ 42-44″
Hip perimeter 31-33″ 33-35″ 35-38″ 38-40″ 40-43″ 43-45″ 45-48″ 48-51″
Inseam 28,5″ 29″ 30″ 30,5″ 31″ 32″ 32,5″ 33″


Height 5′0″-5′1″ 5′1″-5′3″ 5′3″-5′4″ 5′5″-5′6″ 5′6″-5′7″ 5′8″-5′9″ 5′9″-5′10″
Chest perimeter 30-31″ 31-34″ 34-36″ 36-39″ 39-41″ 41-43″ 43-46″
Waist perimeter 20-21″ 21-24″ 24-26″ 26-28″ 28-31″ 31-33″ 33-35″
Hip perimeter 31-32″ 32-35″ 35-37″ 37-39″ 39-42″ 42-44″ 44-46″
Inseam 27,5″ 28″ 28,5″ 29″ 29,5″ 30″ 30,5″


Size: 100 110 120 130 140 150 160
Age 3-4 4-5 5-7 7-9 9-11 11-13 13-16
Height 3′3″ 3′7″ 3′11″ 4′3″ 4′7″ 4′11″ 5′3″
Chest perimeter 23″ 24″ 25″ 27″ 28″ 31″ 33″
Waist perimeter 21″ 22″ 23″ 25″ 26″ 28″ 29″
Hip perimeter 24″ 25″ 26″ 28″ 29″ 31″ 33″
Inseam 23,5″ 25,5″ 27,5″ 29,5″ 31,5″ 33,5″ 35,5


US Men N/A N/A 3-5.5 6-8.5 9-11.5 12-14.5
US Women N/A N/A 4-6.5 7-9.5 10-12.5 13+
US Kids 8-11 12-3 3.5-6 N/A N/A N/A
EU 24-28 29-33 34-37 38-41 42-45 46-49
cm 16-18 19-21 22-24 25-27 28-30 31-33