Its personal preference as to what equipment/clothing you buy. Think about what your trip will entail. Will you be backpacking? Will it be hot? Will you be walking?
You should dress in several 'layers' of light clothing, rather than in thick and bulky insulating garments. You gain warmth and insulation not so much from the actual garment as from the still air trapped between the 'layers'.
CHECK LIST LINKS TIPSUnderclothes
Sweater
Boots
*A good boot should be made from leather. The upper should be cut from one piece of leather thus avoiding the need for seams which can leak or open up. The boot should have a sewn in padded tongue and fasten with D-rings and hooks. Lace-holes and loose tongues let in water. If you push your foot well forward into the boot, you should be able to slip your forefinger down between your heel and the back of the boot, without your toe pressing hard on the front of the boot.Socks
*The best way to avoid blisters is to wear soft and well-washed sockÍs, natural wool remains the best choice. Nylon socks are to be avoided, for they cause the feet to perspire and this will soften the skin and lead to blisters, as will wrinkles in the sock.Jacket
*Trapped air is the finest insulation. The problem with down is when it gets wet the feathers matt together and the insulation properties are lost. A good duvet jacket, therefore, should be made of rip-stop nylon and filled with either down or synthetic material. It shoud have a hood, integral cuffs, and close with a full length zip. The jacket should be long enough to cover the hips, and the zips should be covered and closed. Examine the seams, they should be rolled together before stitching and preferably covered by tape. A good jacket has very few seams and none at all on the shoulders. Good deep pockets are always useful. Whichever garment you choose, remember that it must be suitable for the weather and terrain, and it must be comfortable. Buy iy big enough to permit you to wear a sweater or two underneath if the weather turns nasty.Waterproofs
Hat / Gloves / Scarfs
*The head is the body's radiator. Approximately 30 percent of the bodies heat loss is from the head. A hat can also be used as a pot-grab. And a ski band is good protection for the earÍs. certain parts of the body always seem to feel the cold more than other parts and the neck is one such sensitive area. A large cotton neckerchief is a popular item, protecting the neck from chaffing, keeping off the sun and stopping the rain and wind from basting there way down your spine. A long cotton bar-mat or a tea towel is excellent for this purpose.