The Hot pack ultralight does everything the same as its big brother (Hot pack 5). It also keeps the wind out and protects against the rain. The ultralight vest weighs nothing at all with its 39 g. It takes the place of only 2 gels.

• Reflective tape around the rear storage pocket
• Windproof and water resistant Hot Pack Ultralight 7-denier fabric
• Fully dividing zipper
• Seams extra reinforced
• Mesh side panels for extra ventilation