Thermarest Boost

Ultra-comfy three-season backpacking sleeping bag with adjustable shape and warmth. The Boost sleeping bags feature the revolutionary patent-pending WarmZip™. The center zipper zips up to boost warmth by up to 10F, and can be unzipped to enjoy the spacious freedom of a semi-rectangular bag. The bag also offers 100% recycled fabric, and Thermarest’s first-ever inclusive sizing program. Arm holes facilitate access to the warmzip, ventilation, and camp activities, all without leaving the warmth of the sleeping bag.

This project targeted the rapidly growing market of comfort-focused backpackers. Asking the question "what is comfort?", I explored innovative solutions for providing best in class comfort in a lightweight backpacking sleeping bag. Every detail was refined through extensive prototyping, in-house lab testing, and field testing.

The Boost series achieved the most successful launch of any sleeping bag in Thermarest history, garnering awards and rave reviews.