So you’re determined to take a fabulous ski trip this winter, complete with long days on the slopes and après-ski cocktails in the resort bar (check out some of our top vacation ideas in our annual ski guide).

For the D&G fall 2010 collection, designers Domenico Dolce and Stefano Gabbana embraced an après-ski theme, showcasing Fair Isle knits, fur-trimmed boots and sweaters decorated with snowflakes and reindeer. (Maria Valentino)

But your lack of appropriate ski attire is threatening to deplete your lift-ticket funds, and the thought of buying clothes you will wear only three days a year is depressing. Luckily, the fashion industry’s current obsession with serious winter garb makes it easy to seamlessly blend ski necessities into your existing wardrobe.

Four staples for any wintry activity have emerged as major trends over the past few seasons.

#1 The chunky sweater

Cozy knit sweaters are everywhere this winter. They’re perfect for layering under a waterproof jacket for the slopes or over a maxi-skirt and heeled booties for a drink at the bar. And when forced to eventually return to the office, a thick sweater can be slipped over a shift dress and black tights for a warm and work-appropriate look.

Sorel Caribou boots (Sorel)

#2 Hiker boots and booties

Warm boots are an absolute requirement for traipsing through the snow, either on the mountain or your way to the grocery store. And the options are seemingly limitless this season. Throw on a pair like these Sorel Caribou boots while relaxing after a snowboarding session, or match a pair of booties with cuffed jeans, colored T-shirt and crewneck sweater to run errands.

Trapper hat from Rugby (Rugby)

#3 Trapper hats

Don’t be afraid of those insanely warm looking caps with ear flaps this season. Embrace the warmth while you’re flying down a trail or stuck on mass transit on your way home. Pair the hat with a navy pullover, flannel undershirt and boots. Or for a more feminine look, try a wool skirt and opaque tights.

Michael Kors fall 2011 collection (Maria Valentino)

#4 Fur everything

From giant, luxurious overcoats to detachable collars and vests, fur — and its animal-friendly, cheaper alternative — is on everything this year. What’s best is that the longtime winter staple is no longer relegated to evening wear or nights at the opera. In addition to fuzzy earmuffs for the slopes, try adding a faux-fur collar to a classic peacoat, or a faux vest over a simple hoodie, cargo pants and heeled booties.