ON Sweat Pants - Black - Size: 12

The sweatpants are primarily constructed from 82% recycled polyester, 13% Lyocell, and 5% Elastane, emphasizing sustainability and comfort.

While comfortable and breathable, these sweatpants are best suited for relaxation, casual wear, travel, or light activities. They are not designed for high-intensity training.

The sweatpants feature a drawstring tie that allows you to adjust the waistband for a secure and personalized fit. Tighten or loosen the drawstring as needed.

Yes, there is a hidden side pocket secured with a slender zipper, which is ideal for keeping essentials like a phone, keys, or cards safe and accessible.

Lyocell is a regenerated cellulose fiber known for its softness, breathability, and moisture-wicking properties, contributing to the overall comfort of the sweatpants.

Always refer to the care label for precise instructions. Generally, machine wash cold with similar colors and tumble dry on low heat or air dry. Avoid bleach and fabric softeners.

This specific listing is for a size 12 UK in black. On Running may offer this style in various other sizes and potentially different colors; please check the product catalog for availability.

Ensure you are following the specific care instructions on the label. Avoid harsh detergents and fabric softeners which can affect the material's texture. Consider air drying instead of machine drying.

Check that the drawstring is not tangled within the waistband. Ensure it is threaded evenly through the eyelets. If it becomes knotted, carefully untangle it.

Gently try to move the zipper back and forth. You can apply a small amount of graphite (from a pencil lead) or a tiny drop of silicone lubricant to the zipper teeth to help it glide more smoothly. Avoid forcing the zipper.