we are going a week on sunday, i am struggling to work out what to pack, the cmpany provide thermal suits/boots/socks and gloves but reccommend extra gloves - no problem have ski gloves for us all, but after thermals, base layers and fleece should we then be wearing our own ski wear jakets and salopettes under the thermal snow suits provided ? this sounds a very daft question but please someone who has been tell me ....ps the temperature is due to be around -16 thanks