A good pair of winter gloves will keep your hands warm, allowing you to cycle for longer. Your hands do not move very much whilst cycling so investing in a good pair of gloves suitable for a cold winter is well advised. Winter gloves have a longer cuff to prevent the cold touching your wrist.
There are different types of gloves, made from different materials. Many brands advise on the temperature range they are suited for. The gloves should be snug but not tight, a glove that is too tight will restrict the blood to the fingers. Wiggle customer reviews are also well worth reading.