Rab merino 160 long sleeve crew the super fine merino wool offers softness breathability and odour control complimented by the durability of the synthetic fibres and the fast dry times from 375 this intimate blend offers unsurpassed next to the skin performance a mid weight workhorse for multi day use in cooler conditions the merino tm 160 long sleeve crew takes temperature regulation to the next level and is the perfect foundation for any layering system a striped interlocked fabri