Riserva Ripstop Briar-proof leggings, designed in a very strong cordura fabric.
The advantage of having a pair of leggings unlike a shorts is that you keep a much better freedom of movement to step over the brambles. You can attach these leggings to your belt with 1 strap on each side. In addition, to make things easier, you have straps along this shorts to easily put on or undo.