Field Day 22L Backpack 91% Polyester / 9% Elastane The Swamp Cooler Core™ is

The Swamp Cooler Core™ is an add-on that provides cooling

high-loft down and body mapped baffles

Made of materials that promote long wear and superior wicking

Classic flat-knit sweater in two colours

the Thermic™ Neutrino Sleeping Bag Liner is built from 130g polyester microfleece for extra overnight warmth

Field Day 22L Backpack 91% Polyester / 9% Elastane The Swamp Cooler Core™ isFrom the trail to the lecture hall, one thing remains the sameyou always want to show up prepared. Built with the same burly, recycled materials as their backpacking packs, Mountain Hardwear's Field Day Packs offer trail first features like a large stretch woven shove it front pocket (perfect for a layer or other easy access essentials) and two exterior bottle pockets. A fully padded laptop sleeve and internal organization ensure you're ready for your