The MeCo™ 165 Long Sleeve Zip Tee is a mid-weight long sleeve baselayer, with quick drying and anti-odour properties, for multi day use. The MeCo™ 165 Long Sleeve Zip Tee features a deep venting YKK chest zip, chin guard and a close fitting stand up collar. A slim fit combined with low bulk seams ensure that this baselayer remains comfortably in position when layers are added. MeCo™ combines the warmth and softness of Merino Wool with 37.5™ Technology, a fast drying and wicking polyester with activated carbon. MeCo™ is quick drying and has great anti-odour properties, making it perfect for multi-day use for a range of activities. FIT NOTES (Slim Fit) All Rab® MeCo™ baselayers are designed with a slim fit and should be worn next-to-skin.