Thermoball

Thermoball

Developed in partnership with Primaloft, Inc., ThermoBall is a revolution in insulation technology. Unlike traditional continuous-filament synthetic insulation, the small, round PrimaLoft synthetic-fiber clusters closely mimic down clusters, trapping heat within small air pockets to retain warmth. Independent clo testing by Kansas State University has shown that ThermoBall has warmth equivalent to 600 fill goose down. As a result, ThermoBall can offer the lightweight warmth and compressibility of down with the wet-weather insulating performance of synthetic insulation.

Shop Thermoball

Exploration Without Compromise

Explore Without Compromise

We’ve made it easy to spot our most sustainable products on our website with our “Exploration Without Compromise” badge. To earn the badge, apparel, equipment, and accessories must be made with 75% or greater recycled, regenerative and/or responsibly-sourced renewable materials by weight. If the product has a DWR finish, it must be a non-perfluorinated chemicals (non-PFC) DWR.

Learn More

Related Products
The water-repellent Boys' Forrest Full Zip Hooded Jacket ...
Description:
The water-repellent Boys' Forrest Full Zip Hooded Jacket has the style and features he needs for the ups and downs of the trail and of school life. For added versatility this jacket is zip-in compatible with other Mix & Match ...
The water-repellent Boys' Forrest Mixed Media Jacket uses ...
Description:
The water-repellent Boys' Forrest Mixed Media Jacket uses different textures and colors to create interest and energy. A water-repellent finish over the whole jacket ensures that there's performance to pair with the undeniable style.
The Boys' McMurdo Parka our longest boys' coat ...
Description:
The Boys' McMurdo Parka our longest boys' coat includes a long list of must-have features. It's wind-resistant waterproof breathable and insulated with 550-fill Down. It also has undeniable cold-weather style.
He won't fear changing weather in the smartly ...
Description:
He won't fear changing weather in the smartly designed versatile Boys' Reactor ¼ Zip. This long-sleeve keeps him comfortable with FlashDry™ and has a fit that is perfect for layering.