ASICS Men's Break Through 1/2 Split Short - Lightweight Running Short

Our review of the ASICS Men's Break Through 1/2 Split Short finds it best suited to runners who value unrestricted stride and simple, effective moisture control. The short's half-split leg opening is the single biggest reason to consider it: that cut lets the knee extend without fabric bunching, so quick repeats and tempo runs feel freer. Built from 100% polyester with Hydrology moisture and heat management, the short stays light and wicks sweat, while an elastic encased drawcord keeps the fit secure during faster efforts.

Key Features

• Half-split leg opening: Allows greater range of motion and cleaner leg extension during sprints and long strides.
• Hydrology fabric: Provides moisture and heat management so the short helps keep skin cooler and dryer on warm runs.
• Lightweight construction: 100% polyester material minimizes drag and weight for a barely-there feel when running.
• Elastic encased drawcord: Secures the waistband comfortably so the short stays in place during faster intervals or longer miles.
• Low-profile 2.5 in inseam: Short inseam supports a racing-oriented silhouette that reduces fabric interference while moving.
• Easy care: Machine wash fabric that is simple to launder after frequent training sessions.

Who It's For

The Break Through 1/2 Split Short is aimed at road and track runners who prioritize freedom of movement and lightweight gear for speed sessions, tempo runs, and races. Its 2.5 in inseam and split leg design suit athletes who want minimal coverage that does not impede the stride.

Runners who need pockets for long training days or prefer longer coverage should look elsewhere, and those wanting compression liners or multiple pockets for carrying gels may find this short too minimal. For focused speed work and warm-weather racing it is a strong, practical choice.

Pros & Cons

Pros

• Excellent mobility from the half-split opening for sprints and long strides.
• Effective moisture management from Hydrology fabric keeps the short light when wet.
• Secure, comfortable fit thanks to the elastic encased drawcord at the waistband.
• Machine washable and made of durable 100% polyester that holds up to repeat use.

Cons

• Minimal design with a 2.5 in inseam offers limited coverage and no visible pockets for storage.
• No built-in liner or compression layer included, which some runners prefer for support.

Specifications

Material	100% Polyester
Closure	Elastic encased drawcord at waistband
Care	Machine Wash
Inseam	2.5 in inseam
Technology	Hydrology moisture and heat management
Origin	Imported

Our Verdict

The ASICS Break Through 1/2 Split Short is a focused running short for athletes who want lightweight performance and maximum leg mobility. It delivers sensible moisture management and a secure fit at a reasonable value, making it a good pick for tempo runs, intervals, and race day when carrying extras is not required.

Frequently Asked Questions

Does this short have a liner?
No, the Break Through 1/2 Split Short does not include a built-in liner or compression layer.

Is the waistband adjustable?
Yes, the waistband features an elastic encased drawcord so you can tighten the fit as needed.

How long is the inseam?
The short has a 2.5 in inseam, designed for minimal coverage and freedom of movement.