COLUMBIA OMNI-HEAT 3D KNIT CREW II BASELAYER

£70, columbiasportswear.co.uk

An all-purpose baselayer just as at home halfway up a mountain as it is blocking out stiff headwinds on a spin round the block, this heat-locking longsleeve features Omni-Heat 3D tech to reflect body heat back the way it came. Four-way stretch fabric brings the comfort, and antimicrobial treatment does a decent job of keeping body odour at bay.