Boy Undershort

We love Merino wool for its soft touch and its natural stretch and breathability, so we made the Boy UnderShort.

SKU# boy undershort

Availability: In stock


Dark Shadow Purple


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The Women’s Boy Undershort is made with our innovative Nycore™ Merino wool blend, which features the soft touch, natural stretch, and breathability of Merino wool, with the added durability of nylon. These shorts are equipped with a CyTech™ Tri-Chamois pad and non-binding waistband for an incredibly comfortable ride. The length integrates smoothly with our shorter-length Women’s Mobility Overshort.


Fabric & Construction
Nycore™ Merino Wool, 89% Merino / 11% Nylon, 160 g/m2, Elastic Waistband, Cytech HP Tri-Chamois, Made in California
Fit Notes
Sewn In California
Sewn in our home state, the California Collection takes its name from where it’s made. Its domestic production creates jobs, keeps money in the community, reduces the environmental impact of shipping and brings us closer to the process in every way. It’s more than the tangible benefits, though, that make the difference. The “Sewn in California” tag tells a story, and it’s one we’re proud of.
Return Info
Giro wants you to be satisfied with your apparel purchase on If, within one (1) year of your original date of purchase, your apparel products are found to be defective in materials or workmanship, return it to Giro for a replacement or a credit toward another Giro item of equal or lesser value than the value of the returned item at the time of return. A full refund of your purchase price is also available upon presentation of a receipt. Submitting an item for warranty claims requires a return authorization. To obtain a return authorization, contact Giro Customer Service at 1-800-456-2355, and a representative will walk you through the steps. For more info, please visit or give Giro Customer Service a call. Additional terms, conditions, and limitations may apply.

Giro Comfort Guarantee

Every Giro cycling short with a chamois is designed to offer a supportive, comfortable fit on the bike. With our 60 Days to Decide comfort guarantee, you have 60 days from the date of purchasing any Giro Undershort, Bib Undershort, Ride Short, or Ride Bib Short to evaluate the comfort for yourself. If the fit or feel of our chamois products isn't great, we'll work with you to make it right. Ask your retailer for more details.

Fit Guarantee is not available in all regions. Customers outside of USA should check with their local
Distributor regarding this policy.