dhb Merino SS Roundneck Baselayer M_150: This ultra fine merino wool is comfortable & smooth next to the skin. The M-150 Tee gives part of its secrets away by the displaying of its numbers. The 150 denotes the gsm, or the grams per square meter. This denotes that we have chosen a fine balance between light weight & durability. In warmer weather you can use the Tee like a stripped down jersey, light low bulk in this seasons dark, warm charcoal. Flexible garments have been a real watch word at dhb & the Tee is no different as it will double up as a highly effective base layer while used under a jersey. Unlike many synthetics wool isnt quick to smell & always feels soft & warm against the skin. Extensive testing has taken place to insure that the merino used has a close to zero itch factor. As it can be used as a base layer all seams are flatlock stitched to avoid unsightly seam marks when removed. Merino is unique in that when wet from moisture it manages to retain a higher warmth level compared to many synthetic base layers. So whether you use this as a cut & thrust commuter piece or a layered system in winter youll always find the right garment in your wardrobe. Washing/ Care Information For further information click here Outstanding all round thermal management Next to skin, slim fitting Flat lock seams for comfort Ultra fine 18.5 micron merino yarn, smooth & comfortable against skin Low odour Naturally repels water