MMV - so many variables. I've got 15 year old merino layers that are still going strong (as Karin said, they're thicker layers - for sure the thinner ones wear out faster). I have a 70/30% merino/acrylic Chromag t-shirt called the Roam that I'm coincidentally wearing right now under a flannel, but I also wear it riding fairly often. [I've had it since 2017](https://nsmb.com/articles/chromag-recluse-wool-jersey/). It has two holes in it near the waist, neither of which have grown and are basically invisible. It's an incredible t-shirt. It retails for $120. It's lived 6 t-shirts' worth of lives. Still looks ok with jeans and works great on the bike. Cannot argue with the value proposition. I've also got a Dan Merino t-shirt from NF that also gets used on and off the bike. Haven't had it for as long - only three years - but it's doing equally well.
There are a lot of merino blends out there. 100% is too thin. Less than 70% or so, though, and it's not merino so much anymore...you lose some of the benefits of the fibers.
Sept. 27, 2023, 6:35 p.m. - Pete Roggeman
MMV - so many variables. I've got 15 year old merino layers that are still going strong (as Karin said, they're thicker layers - for sure the thinner ones wear out faster). I have a 70/30% merino/acrylic Chromag t-shirt called the Roam that I'm coincidentally wearing right now under a flannel, but I also wear it riding fairly often. [I've had it since 2017](https://nsmb.com/articles/chromag-recluse-wool-jersey/). It has two holes in it near the waist, neither of which have grown and are basically invisible. It's an incredible t-shirt. It retails for $120. It's lived 6 t-shirts' worth of lives. Still looks ok with jeans and works great on the bike. Cannot argue with the value proposition. I've also got a Dan Merino t-shirt from NF that also gets used on and off the bike. Haven't had it for as long - only three years - but it's doing equally well. There are a lot of merino blends out there. 100% is too thin. Less than 70% or so, though, and it's not merino so much anymore...you lose some of the benefits of the fibers.