I/O Bio Merino Sizing Chart
5 out of 5
December 14, 2011
I own several I/O bio pieces of clothing, jacket, underwear, t-shirts, long sleeve shirts. The ionization process used in these products make them soft, leaving out the itch. I could never were wool but I was told by fellow aerobic athletes here in Montana about I/O bio and I have fully embraced type of wool. I use the thumb holds when I neglect to bring my I/O bio liners, the sun goes down during the late afternoon winter run and I simply pop the thumb through the sleeve hold and viola, warmth.Pros: Great design, Build quality, Ease of use, Great value, Performance
Black, Charcoal Melange, Navy and Smoke Pine.
Available sizes, while supplies last, include size small, size medium, size large, size extra large and size extra extra large: s, m, l, xl, xxl.