Arc'teryx
Women's Rho Bottoms (Past Season)
Performance base layer for lower output activities in cool to cold temperatures. *The Rho Bottom was previously the Rho LT Bottom.
Measurements are in cm.
Alpha Sizing
Size | Waist | Hip | Regular Inseam | Short Inseam | Tall Inseam |
XXS | 60 | 84 | 78 | 73 | 85 |
XS | 65 | 89 | 78 | 73 | 86 |
S | 70 | 94 | 79 | 74 | 86 |
M | 75 | 99 | 79 | 74 | 87 |
L | 83 | 107 | 80 | 75 | 88 |
XL | 93 | 117 | 81 | 76 | 88 |
XXL | 103 | 127 | - | - | - |
Numerical Sizing
Size | Waist | Hip | Regular Inseam | Short Inseam | Tall Inseam |
00 | 61 | 85 | 77 | 74 | - |
0 | 64 | 88 | 78 | 74 | - |
2 | 67 | 91 | 78 | 74 | - |
4 | 70 | 94 | 78 | 74 | 86 |
6 | 73 | 97 | 79 | 74 | 86 |
8 | 76 | 100 | 79 | 74 | 86 |
10 | 79 | 103 | 80 | 74 | 86 |
12 | 84 | 108 | 80 | 74 | 86 |
14 | 89 | 113 | 80 | - | 86 |
16 | 94 | 118 | 81 | - | 86 |
Free shipping on orders over $99 (oversize charges may apply) - Learn More
Fast and easy returns (no returns for final sale or heavily discounted items) - Learn more
Found a better price elsewhere? We guarantee you the best price on this item - Learn more


Premium gear is our promise
We were established almost 75 years ago by John Monod, a Swiss mountain guide and ski instructor. Quality outdoor gear is what our brand was built upon since 1949. Learn more.
Frequently Asked Questions
Have more questions? See all FAQ's
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Absolutely! We offer fast & easy returns on most products.
Exceptions include products 30% off or more, climbing gear, underwear & more.
Read our return policy here.
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All orders over $99 will qualify for free standard shipping within Canada.*
International shipping charges will apply for all non Canadian orders.
Oversize charges apply to larger items.
*See all shipping information here.
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Standard shipping estimates are as follows:
Alberta and British Columbia: 2-4 business days
Saskatchewan and Manitoba: 3 - 4 business days
All other provinces and territories: 5 - 9 business days