What Our Gearhead(R) Experts Are Saying: "This mummy liner is perfect for warm, buggy nights in the backcountry. The stretch-knit fabric moves with me, wicks moisture fast, and never feels clingy. Add the Insect Shield treatment, and I sleep much easier knowing I'm better protected when the bugs come out." We turn to the Sea to Summit Breeze Liner with Insect Shield when humid conditions and relentless insects threaten a solid night's rest. The COOLMAX EcoMade and TENCEL lyocell blend keeps moisture moving away from our skin, helping us stay cool, dry, and comfortable when the air is heavy. Its soft stretch-knit construction allows natural movement, preventing that tangled, restrictive feeling that often comes with mummy-style liners. For nights in bug-heavy terrain, the Insect Shield treatment adds welcome reassurance, making the liner an ideal companion for warm-season backpacking. Lightweight, compact, and breathable, it provides a clean, comfortable sleep environment wherever we pitch camp.