This is a very versatile garment as it can be used as a super warm winter base layer or as a light mid-layer when active in colder conditions. Phasic fabric is made with a bi-component yarn that retains less moisture & dries faster to ensure your comfort & temperature regulation during stop & go activities. When things get sweaty the moisture wicking yarn transports moisture away from your skin & disperses it across the whole garment; whilst the hydrophobic yarns remain dry & limit the garments ability to hold moisture. When you stop the garment dries incredibly quickly keeping you warmer & more comfortable. Phasic SV fabric makes up the main body whilst a lighter Phasic AR fabric makes up the underarm area to maximise breathability & comfort. Encapsulated silver ions in the fabric help to reduce bacteria build up & nasty pongs, so you can wear this top for extended periods before offending your mates. A zip at the neck helps with ventilation & the anatomical design combined with the stretchy fabric make this brilliant base layer a pleasure to wear. Moisture-wicking Breathable Durable ultra quick-drying Minimal odour retention Hydrophobic materials will not absorb water Mechanical stretch textile for unrestricted mobility Flatlock construction improves next-to-skin comfort Anatomical shaping for fit & comfort Gusseted underarms Laminated chin guard Quick-pull 1/2 length zip for easy venting Long sleeves Non-chafing label