The wool-blended A2B LS Top is a long sleeve crew neck ideal for everyday standalone use or layering under a tech layer when running, climbing or skiing. Arc'teryx designed the A2B LS Top with a soft merino wool and cotton jersey knit blend, which provides the natural anti-odour properties of wool with the easy versatility of cotton. This minimalist long sleeve comes in a regular fit with a slightly longer length. It can be worn alone or as a base layer.