Lightweight moisture-wicking fabric keeps you cool during activity
3 inch inseam and mid-side splits provide relaxed fit and moderate coverage
Built-in smooth mesh liner enhances comfort and moisture management
Elastic waistband with adjustable drawstring ensures a secure, customizable fit
Internal key pocket offers convenient storage
The BOA 3” Half Split Trainer features lightweight moisture wicking fabric to keep you cool and performing at the highest level. 3” inseam and mid side splits offer relaxed range of motion, and moderate coverage. The built in smooth mesh liner is comfortable and moisture wicking. Elastic waistband has an adjustable drawstring and sleek in
Inseam
3 inches
Material
Lightweight moisture-wicking fabric
Liner
Built-in smooth mesh
Waistband
Elastic with adjustable drawstring
Key Pocket
Internal
Splits
Mid and side
5.0
51 ratings
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BOAs are my go-to shorts
I've worn many brands and styles of running shorts over my last 50 years of running. Most were OK, but BOAs are my all-time favorite because of their quality, comfort, and functionality. I probably own a dozen pair.
M
Michael · October 11, 2026
Lightweight and comfy
Great for running and allows for lots of mobility
J
J · July 28, 2026
Great fitting!
If you're a runner like me, lots of road miles (75k-80k since 1982), you know how important a comfortable pair of shorts are! I've been wearing BOA's for as long as I can remember. I've run the WSER in them 5 times. I've run the Angeles Crest 100 in them 10 times. They are the most comfortable running short you can find! Buy a pair and find out what other experienced runners have learned.