- Flack Lock Seams.
- Ultra Soft Microfiber.
- Nylon and Lycra.
- Don?t sacrifice on style when you opt for sports clothing - these fast-drying Athletic Boxer Briefs are perfect for HIIT training. They have been specially crafted using a trio of fabrics for the ultimate in breathability and comfort. A mesh microfiber band around the legs stops chafing whilst an additional leg band prevents them from riding up during workouts. They are a must-have for the Crossfit sports kit.