If you’re looking to add a little extra fun to your next adventure, the Women’s Altitude ‘Mongrel’ is for you! Don’t let the name fool you, this is one seriously good thermal Base Layer. The perfect combination of performance, warmth and c...
Reviews
4.6
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Lovely light, warm & colourful base layer. No reason to be grey on long trails!
J
Jenni-Louise · 9 days ago
LOVE IOM
Tops, pants & socks, been wearing for years & wouldn't survive Winter without my IOM gear.
C
Chris · July 15, 2025
Bright and fun top
Gorgeous colours, exactly as pictured. After reading about the sizing of Altitude styles, I ordered an XL and very happy with the fit. Top feels soft against skin, it’s lightweight yet warm. Love io merino for coming up with this fun colour combo!
