The Inner Layer explained ...

The inner layer of the sock is designed to be in direct contact with the skin, and to regulate the climate inside the sock, keeping the wearer comfortable.

One factor in comfort is breathability. The rate of moisture transmission through the membrane, between the inner and outer layer, is driven by the humidity and temperature differences between the internal and external climates. Ideally, the membrane moisture transmission rate will match the rate at which moisture, in the form of perspiration, is being produced by the body. The rate at which moisture is being produced will vary according to the individual and his/her activity level.

The Mid-Light ...

In the Mid Light Sock, the inner sock is composed of a cotton and nylon microfibre in a two tier construction. The nylon microfibre lies on the internal surface of the sock, in contact with the skin. The fibres are very fine and naturally hydrophobic (water hating), consequently they will not hold moisture, but readily wick it by capillary action to the second, more absorbent, cotton tier, keeping the foot dry and comfortable. The cotton tier, lying between the nylon and rubber outer and membrane acts as a "reservoir", holding moisture until it can be transmitted, as water vapour, through the membrane and away.

The Mid-Thermal ...

In the Mid Thermal sock the inner layer is composed of terry loops of hollow core polyester (a high wicking yarn) and cotton. The loops provide cushioning - high density padding is provided in the critical area at the bottom of the foot, for greater comfort. The terry loops take moisture from the skin and hold it until it is transmitted through the membrane, as water vapour.

Water Blocker Socks ...

In the Waterblockers, the inner surface of the sock is made from Coolmax® - a fibre specially engineered with a cross section of channels along its length, which encourage moisture to be wicked rapidly, away from the skin, keeping the wearer dry.

Thermal Liner socks and gloves ...

The SealSkinz® liner sock and the Sealskinz® liner glove are composed of a wicking yarn, Meraklon®. When the liners are worn under Sealskinz® they carry moisture away from the skin to the internal surface of the waterproof product.

The Outer Layer explained ...

SealSkinz socks and gloves are covered with a durable nylon outer layer. Nylon is virtually indestructible, with a tenacity of 50 g/tex against, for example cotton, 32 g/tex or wool, 15g/tex. It has excellent elastic recovery properties: 97% elastic recovery at 5% extension against cotton (47% recovery) and wool (88% recovery)

Nylon is seldom used for socks because it is non-absorbent. The moisture regain of about 4% compares with absorbent cotton (9%) and wool (17%). For most socks/gloves this would be a disadvantage, because the nylon would be sweaty and uncomfortable to wear next to the skin.

However in Sealskinz products, the nylon is not next to the skin, the inner sock and membrane layers lie between. As the outer layer it offers excellent protection to the membrane & dries out quickly.