Commuting most days of the week need a strong reliable and great functioning bag look no further the timbuk2 especial messenger bag withstands even the most gruelling commutes with cordura ripstop abrasion resistant nylon on the outside and waterproof tpu inside and on the boot the especial handles foul weather and even fouler road grime with ease magnetic buckles with tensionlock enable on bike one hand access to your messenger and the ambidextrous shoulder strap favors righties and l