Climatec fabric is used on MacWet gloves as a winter backing or in cooler climates. It is a three layer fabric which includes a water resistant outer shell a windproof core and a fleece lining. There are two cuff lengths available long and short and they on average a question of personal preference. Measured across the fleshy bit of skin just under your four fingers. 7cm (size 7) is considered a medium womens size whilst 8cm (size 8) is considered to be a medium mans size. Ref: UTTL6834