The sleek, water-resistant and technology-packed Columbia Circuit Breaker II Technical Daypack takes it all in stride. The Techlite straps are comprised of an insanely strong, lightweight compound molded around super-breathing mesh inserts, with a healthy helping of cushioning for comfort. Adding to breathability is the ventilated Backdraft back panel, featuring directional foam conduits that direct hot air out and cooler air in. The roomy, padded laptop sleeve enjoys exclusive access and a soft fleece lining to protect up to a 17-inch laptop. A bevy of organization pockets keep your small items secure, and compression straps allow you to cinch down the volume to perfectly fit the pack's contents. Omni-Shield advanced repellency wards off wet weather and stains to protect the pack's contents, while the rugged Tarmaq bottom withstands abuse.