For a little more warmth without stifling yourself, go with a Hyperflex Cyclone 2MM Long Sleeve Springsuit this year. All the great Hyperflex amenities are present in the Long Sleeve 2MM Cyclone Springsuit, such as 100% 4 way superstretch constrction, an adjustable collar, flatlock seams, and super warm Chillbreaker mesh skin chest and back panels.