Columbia Circuit Breaker Daypack Black, Graphite O/S Shell: 420D Rip-Stop 100% polyester , Shell: 420D Coated Oxford 100% nylon Omni-SHIELD advanced repellency- TECHLITE shoulder straps-Deluxe internal organization- Fits up to 17" laptop Padded laptop compartment -Dense EVA foam shock absorbing insert on bottom laptop compartment Reflective safety accents- Soft tricot lined electronics pocket- Removable hip belt- Compression straps -Elastic stow pocket Dimensions: 20" x 13" x 8.75" Capacity: 30 Liters Weight: 2 lb 11 oz