Bamboo sweatshirt and when to choose a zip

Short answer: A zip turns the top into a layer you can regulate. A closed model holds the warmth better. If you move between warm and cold during the day, the zip wins.

Regulation rather than insulation

With a zip you can open up when the room gets warm without having to take the top off. That does more for comfort than a thicker quality. See sweat clothing.

Closed holds the warmth better

With no opening at the front there is no cold bridge. For cold rooms and outdoors a closed model is warmer at the same weight. See bamboo sweatshirt for men.

Under a jacket

A zip takes up room at the neck under a jacket. If the top is meant as a mid layer, a crew neck is better. See bamboo hoodie for men.

The ribbed edges matter most

Whatever the closure, it is the ribbing at the cuffs and hem that decides whether the top holds its shape. See bamboo sweatshirt for women.

Wash with the zip closed

An open zip tears at other clothing and at the top itself. Close it before washing. See washing and care.

Frequently asked questions

Is a zip better than a closed sweatshirt?

For days with changing temperature yes. For constant cold a closed model is warmer.

Can you wear a zip top under a jacket?

You can, but the zip takes up room at the neck. A crew neck is better as a mid layer.

Should the zip be closed before washing?

Yes. An open zip tears at both the top and other clothing in the machine.