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Under Dog

Size Guide

Don’t like to wear a pack every time you ride? We bring you the Underdog, designed to be worn underneath your favorite Club Ride baggy top. Now you can carry all the essentials for a ride in its three rear storage pockets. This super ventilated, fitted tank is sure to serve you well on your next mission into the wild.


/ Stretch mesh fabric Fabric Construction: 94% poly / 6% spandex

/ Fabric Weight: 127 g/m²

/ Back yoke to avoid shoulder seam

/ Low neckline and armholes

/ 3 rear drop-in bike pockets

/ Fit: Sport

Customer Reviews

Based on 4 reviews
Excellent product, keeps things in place.

I purchased this item to hold my cycling head lamp battery on night rides. I haven't hit the trails under the stars just yet, but I have used this item while running on the treadmill to hold my cell phone so I could used standard (wired) earbuds while I ran. I was impressed with how well this product kept the phone in place. I never once thought about the phone in the back-center pocket at all during my 5 mile treadmill ripper. I was so happy with this product that I just ordered another one this morning, literally, no bull. I am excited to hit some singletrack under the cloak of darkness with this base layer soon.


Very comfortable as a base layer for Autumn riding. I imagine it will be perfect for balmy hot summer riding here in the Northeast.

The dawg is awesome!

It is perfect to wear under a looser jersey or shirt to carry the basic and tools. It is pretty snug...I liked it, but if you are in between sizes or like base layers a little looser I jump a size up..Godspeed and Happy trails!

Love the rear pockets to

Love the rear pockets to store phone, etc while wearing loose shirt over it!

Related Items

Men's Tops Sizing Chart| Sport Fit
This a SPORT FIT style and is a closer fit. For more information on the difference between comfort and sport fit click here.