I just purchased these 2 pairs of trousers, but unfortunately they are too big for me.  I am a size 8-10, but these would be perfect if you are size 10-12.

$90 for the Marmot trousers/ $120 for the Outdoor Research Softshell pants OR $200 for both

http://www.gumtree.com.au/s-ad/cottesloe/women-s-clothing/new-marmot-trekking-pant-outdoor-research-softshell-pant/1007823242
Item 1: Marmot Lobo’s Pant – Women’s, Size 8, Dark Steel trousers $90
DETAILS: Stretchy, comfortable technical trousers excellent for hiking, climbing, backpacking or travelling. Made from recycled materials – soft, moisture-wicking, quick-drying pant providing UPF 30-rated protection from the sun. Articulated knees and a gusseted crotch provide you plenty of room to climb, hike, or break out your yoga moves. Its roll-up cuff feature comes in super handy when you have to cross a stream, and the Lobo’s secure side pocket stores your map or lip balm. Oh, and  they feature a soft brushed tricot interior waistband for added comfort.
TECH SPEC: Material: 93% recycled nylon, 7% elastane Fit: regular Inseam: 32 in Waist: belt loops Pockets: 2 front hand, 1 side zippered, 1 back UPF Rating: 30 Weight: 9oz Recommended use: hiking, backpacking, climbing, casual
Item 2: Outdoor Research Cirque Softshell Pant Women’s, Medium – Black $120
DETAILS: Made with double-weave stretch fabric and featuring a trim fit, these pants lie comfortably under a harness and don’t mind the occasional spring skiing day. Multiple pockets accommodate your essentials while you move up in the world.
TECH SPEC: Material: double-weave stretch woven fabric Fabric Waterproof Rating: water-resistant Fabric Breathability Rating: highly breathable Fit: trim Side Zips: Yes Gaiters: No, Bootlace hook Waist: adjustable elastic tabs, belt loops with button closure Pockets: 2 zippered hand, 1 back zippered Weight: 18.7oz Recommended use: alpine climbing, ski touring