Performance. Responsibility. Redefined.

Meet the 40 Series — our first-ever sustainable riding breech, designed with the planet in mind and performance at heart.

Crafted from Repreve performance fabric, made from post-consumer and industrial waste, the 40 Series delivers the same trusted fit as our 50 and 55 Series, but with a lighter environmental impact.

Engineered for the modern rider, these breeches offer technical precision, everyday comfort, and lasting durability — now at a sustainably attainable price. A luxury product made responsibly, and priced so that every rider can experience the quality Struck is known for..

Minimalist Silhouette
Everything an athlete needs. No more. No less.

Repreve performance fabric
Made with Repreve® recycled fibres, the fabric offers stretch, comfort, shape retention, and stain resistance.

Unique Size Increments
In-between sizes allow you to find your perfect fit.

Proven Fit
Same sculpted rise and shape as our 50 and 55 Series breeches.

All Day Comfort
Lightweight, breathable, and durable.

Knee Grip System
For those moments you need a bit of extra stick. Silicone-free.

Sustainably Priced
A luxury product at a responsible, attainable price.

100% man-made fibre.

The 40 Series breech is made with Repreve Recycled Nylon Fabric. Using recovered yarn waste as a replacement for fossil fuel-based raw materials, this secular fiver reduces global dependence on virgin petrochemicals, without sacrificing the strength, durability, and performance of lightweight stretch nylon fabrics.

92% Recycled Nylon, 8% Elastane

Second Skin Fit

Our 40 Series breeches are a mid-rise. Made to hug the body, they fit similar to tights. All of our 40 Series breeches come in one standard length. With our smooth elastic cuff, they are meant to hit at the ankle or above. Our fabric does not stretch out, so be sure to order true to your actual measurements. Want them tight? Stay to your measured size. Want a bit of wiggle room? Size up for your perfect fit!