Löffler uses two cycling-short fabrics, both knitted exclusively in its own knitting facility in Austria:
Elastic Interlock (double-knit construction) is used in the premium hotBOND® and SKYS collections. It is compact with a light compression effect, highly elastic yet shape-retaining, extremely durable, and suitable for freecut finishes (raw-cut edges that do not fray).
Elastic (single-knit construction) is used in the BASIC, WINNER, and cycling undershorts collections. It is multi-elastic, durable, breathable, and quick-drying.
The difference becomes noticeable on long rides: Elastic Interlock maintains its shape and compression effect for hours, whereas Elastic fabric tends to relax slightly over time. For rides shorter than two hours, the difference is minimal.