Saucony Unleash SD 2 review
The Corescore is a score from 0-100 that summarizes opinions from users and experts. Below shows the distribution of scores for all track & field shoes.
This shoe has a 5% penalty on its expert reviews because it has fewer than 5 reviews. This is to avoid that shoes with few reviews unjustly receives high scores.
Learn moreVerdict from 100+ users
Pros
- Comfortable
- Secure fit
- Extremely light
- Maximizes throwing rotations
- Supportive platform
- Good value for money
Cons
- Needs break in
- Spike lacks durability
- Stiff underfoot

84% say it's true to size.
Out of stock in all 30 shops
Saucony track & field shoesComparison to similar track & field shoes
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Who should buy the Saucony Unleash SD 2
The Saucony Unleash SD 2 is highly recommended for entry-level or elite athletes who are into:
- shot put, discus, and hammer throw track competitions
- any throwing events that require glide and rotational movements
Boosts higher performance
The Saucony Unleash SD 2 is a performance shoe that’s designed to handle throwing events. These throwing events include the shot put, discus, and hammer throw.
This track and field shoe also caters to both glide and rotational movements.
Unleash SD 2 is a versatile track throwing shoe
Just like the ASICS Throw Pro, the Saucony Unleash SD 2 is a track throwing shoe that is touted to handle it all – whether you utilize a glide or spin technique.
Its predecessor, the Unleash SD, has kept a good name in the market. They say that if the componentry yields optimal performance, there is nothing really much to change. The same principle has been incorporated into the design of the Unleash SD 2.
Sock-like fit
Keeping all critical features of its previous version, this throwing shoe has only gone through one important refinement – the integration of its ISOFIT system.
This upper technology allows a sock-like fit to the foot as it conforms to its natural contours.
Dual lockdown system
Providing a sock-like fit to the foot is the Unleash SD 2’s ISOFIT system. It also features a dual lockdown system as it employs a cross strap that is comprised of a Velcro strap that pins the foot down over the footbed.
The second lockdown system of the shoe is its lace-up closure system that gives a customizable fit.
Delivers a superb surface grip
The Saucony Unleash SD 2 is available in unisex sizing, following men’s sizing scheme. It is advised that women go 1.5 sizes down to secure accurate fit and size.
In order to maintain its durability and deliver a superb surface grip and traction, the Unleash SD 2 features a high-density rubber outsole.
Sufficient amount of flexibility
This component is also recognized for supplementing a sufficient amount of flexibility, allowing more natural foot movements.
Situated in the midsole of this track shoe is its compression-molded EVA (CMEVA) midsole that runs full-length.
Lightweight and durable cushioning
It is an industry-standard foam that provides a lightweight and durable cushioning. Because of the general composition of the CMEVA, a propulsive ride is promoted.
The integration of the ISOFIT system into the upper of Unleash SD 2 is one of the updates made to it. It consists of a stretchable mesh that wraps around the contours of the foot to give a soft, sock-like fit.
Saucony Unleash SD 2 provides a snug, lockdown fit
To further the structural integrity of the shoe, flex film overlays are welded to its upper. These are made up of thin films that secure a snug, lockdown fit.
In the midfoot of the Unleash SD 2 is a cross strap that consists of a Velcro strap that locks the foot in place. It is intended to heighten the security of the shoe to prevent any slippage or premature removal.