The Airlite Towel Medium is the middle size in Sea To Summit's ultralight microfibre line — a compromise between towel area and a weight of just 47 g. The 85% polyester / 15% polyamide blend gives a high absorbency-to-weight ratio: per the manufacturer it soaks up more than three times its own weight in water and sits in the fastest drying category (under 30 minutes).
After use it packs into its own small stuff sack (roughly 5 × 5 × 5 cm), taking up noticeably less pack space than a standard cotton or terry towel of comparable area. A sewn-in hanging loop is included for drying on the move.
Medium is a versatile pick for hiking, travel, and water sports — big enough to dry the upper body without carrying the extra weight of the Large version.