Marmot Heat Technology

Marmot Solarshield

UPF: What is it ?

UPF stands for Ultraviolet Protection Factor, which is a measure of the amount of UV radiation that penetrates a fabric and reaches your skin.

What's the difference between UPF and SPF?

SPF stands for the Sun Protection Factor, most commonly associated with sunscreen. This measures the amount of time it takes for skin to burn.

UPF on the other hand stands for Ultraviolet Protection Factor, which is a measure of the amount of UV radiation that penetrates a fabric and reaches your skin. For example, a fabric rated with a UPF of 20 will allow only 1/20th of the sun's UV rays to pass through.

Marmot Solarshield fabrics come in UPF 20, 25, 30, 35, 45 & 50.

What are the benefits of this technology?

Solarshield products have built-in protection without the aid of topical treatments that can wash out over time. Using unique fiber content, weaves, fabric weights and colors, our engineers have a collection of UPF apparel and accessories to help reduce your exposure to UV rays and give you more time in the great outdoors.

Wearing a UPF fabric reduces your exposure to UV rays, (where it covers your body).

Dark colors and tight weaves will have higher UPF ratings. As well, nylons and polyesters are better than plain cotton because they reflect radiation.