Interval Short

Size Guide

The ultimate lightweight performance short

Premium 4-way stretch shell with light compression and an innovative back venting yoke plus laser cut side panels for extra ventilation. Features a bacteriostatic carbon mesh internal liner to control odor.


  • 6 1/2" outer layer, 7" liner
  • 4-way stretch for dynamic movement
  • Carbon enhanced antimicrobial gusset liner
  • Internal drawcord to adjust fit
  • Internal media patch packet on wearer's left
  • Bonded hem for weightless finish
  • Side slits for maximum mobility
  • Laser cut venting for weightless breathability
  • Back vent for maximum airflow
  • Lightweight silicone gripper hem for no-slippage
  • Bonded hem for weightless finish
  • Quick Dry liner for ultimate comfort


Made with recycled polyester

Bluesign® certified - Responsible and sustainable manufacturing of textiles

OEKO TEX® certified - Fabric is free of harmful chemicals

Fabric + Care

86% recycled polyester, 14% spandex. Machine wash in delicate cycle and cold water. Hang to dry. Skip the bleach and never dry clean.

Size + Fit

Standard (Hovers the body)

Customer Reviews

Based on 4 reviews
Colin M. (Richmond, CA)
Interval shorts review

I love the shorts for exercise. My only suggestion would be a pocket for the phone in the core short portion.

David M. (Palgrave, CA)
Interval Short

The quality of the interval short is equal to other RYU products. I have the full colour range of the Vapour Sleeveless workout top. Unfortunately I’m not sold on the fit and style of the Interval Short. I’m not sold on the fit. The short is large (I like them a little more tailored) but if I went smaller I think the undershirt would be too tight around my thighs as the large is pretty snug already. Further, I’m right handed and I find the double pocket on the right hand side to be problematic for easy entry. I wouldn’t buy this particular short again.


Great shorts.

Spencer S. (Toronto, CA)

Interval Short