Athletic Club Training Shorts

Official Athletic Club training shorts, Season Collection 2025/2026

The Athletic Club training shorts on this page are part of the official 2025/2026 season collection. They are supplied by Castore, the exclusive kit sponsor of Athletic Club. All shorts feature the club logo, with colors that match the club's identity. The sleek finish and official branding show this is a genuine product.

You will find various models that match the current training kits. Each design follows the first team's style. You can wear them for sports or as casual wear to show club pride. The photos on the page show details like logos, stitching, and materials to help you choose shorts that fit the new season.

Product features and materials

The Athletic Club training shorts are made for sports and comfort. Castore uses light polyester that breathes well and dries fast. Some models have AerTek technology, which pulls away sweat during exercise. This makes them good for hard training in all weather.

The shorts have a regular fit with an elastic waistband and drawstring. You can move freely without the shorts moving during activity. Features like zip pockets or mesh panels add comfort and air flow. The shorts are easy to care for. Wash them in cool water and air dry them to make them last longer.

Available sizes and size chart

To find the right Athletic Club training shorts, take your measurements. The shorts come in sizes from XS to XXL, based on the model. Each product has a size chart to help you pick the right waist size and length.

The fit is the same across the entire 2025/2026 season collection. The size chart helps if you already own other Castore club gear. Not sure between two sizes? Pick what feels best. Choose looser for casual wear or tighter for training.

Club identity and design

Each pair of shorts shows the identity of Athletic Club. You'll see it in the club colors and the logo on every pair. The logo often sits on the upper thigh. The red-white or navy blue details make the shorts easy to spot by fans.

The shorts are part of the training collection worn by Athletic Club players. You're picking a look that matches the team's official outfit. By wearing these shorts, you show support for the club and add a pro touch to your sportswear.

Order and delivery information

All models on this page are in stock now. We ship orders within 1-2 working days. If you want to try different sizes, returns are simple within the return period. Have questions about your order or sizing? Our customer service team can help by email or phone. You'll get a tracking code when your package ships.