The Fjallraven Vidda Pro Ventilated Trousers are based on the bestselling Vidda Trouser, but this is a ventilated version with a slimmer fit. Constructed with stretch fabric in the crotch, you get outstanding freedom of movement while also getting great breathability. This makes for an ideal year-round hiking or trekking pant, no matter how hot or cold it gets. With features galore on the Vidda, no detail has gone overlooked. We like the buttoned strap adjustments on the leg endings that come in handy if you are wearing high, low or mid-length boots so you can adjust the fit on the fly. There is even an axe loop and a specifically designed pocket to hold a knife on the right leg when you to channel your inner Mountain Man. For rugged durability, exceptional breathability and great functionality, the Fjallraven Vidda Pro Ventilated Trousers are the measuring stick for all other trousers to follow.