Speedo 7520116 Adult Teamster (25L) Outdoor Backpacks Durable exterior shell is built tough with abrasion resistance for demanding athletes Removable dirt bag keeps dirty/wet gear separated from clean garments. Dirt bag dimensions: 10'' x 10'' Offset raised laptop sleeve to protect corners Side media pouch and water bottle holder Cozy bleacher seat is nestled behind the laptop sleeve for hard and cold surfaces