Sea to Summit Ultra-Mesh Mosquito Head Net Review

Overview

The Sea to Summit Ultra-Mesh Mosquito Head Net is a 23 g black nylon sock that pulls over a hat and cinches at the collar. It exists for the bugs a standard mosquito net lets through: no-see-ums, midges, sandflies and black flies. The trade-off is the usual one for very fine mesh, which is slightly less airflow and a slightly softer view than coarser netting. In exchange, it blocks the insects that ruin camp at dusk.

Key Specs

Spec	Detail
Weight	23 g (0.8 oz)
Mesh material	15D monofilament nylon
Mesh density	2,000 holes/in² (310 holes/cm²)
Closure	Elasticized drawcord with barrel lock
Stuff sack	Included (100% nylon)
Target insects	No-see-ums, midges, sandflies, black flies, mosquitoes

Performance

Bug protection. Sea to Summit’s standard head net uses a 500-hole-per-square-inch mesh, which stops mosquitoes but not no-see-ums. This version packs four times as many holes into the same area. Owners who bought it for the JMT, for small black flies in the Northeast, and for dog walks in May report that the buzzing and biting stop once it is on. A common thread in user reviews is that it earns its keep the moment the wind drops at camp. That is when the small stuff comes out.

Weight and pack size. At 23 g, the Ultra-Mesh is roughly half the weight of Sea to Summit’s own standard net, according to the company. For comparison, Section Hiker weighed the standard Insect Shield version at 0.9 oz, and Packstack lists that model at 36.9 g. Packed in its stuff sack, the Ultra-Mesh disappears into a hip-belt pocket. One long-time reviewer carried the standard net for years in a ditty bag with a headlamp before a PCT section finally needed it. That is how most thru-hikers treat a head net: as a few grams of insurance.

Visibility. The mesh is black, and black netting is easier to see through than white or tan because it absorbs light instead of scattering it. Section Hiker’s reviewer found it easy enough to wear all day on the standard model, and said they forgot it was on until they tried to eat or drink. Fine no-see-um mesh is inherently denser than mosquito netting, though. A Backpacking Light forum commenter pointed out that nobody sees through it as clearly as through coarse netting. That is the cost of the finer weave. Hikers used to the standard net will notice it, but few reviewers describe it as a problem.

Fit and closure. The elasticized drawcord and barrel lock cinch the opening around the neck, so a gust of wind won’t peel it off a hat. A bug net with no frame needs something to hold the mesh off the face, so owners recommend wearing it over a brimmed hat or at least a ball cap. Without one, the fabric rests on skin and mosquitoes can bite through it. The net is also not a bug shirt: it covers the head, face and collar, and everything below is up to your clothing.

Durability. One owner snagged it on rose thorns and found no damage. Section Hiker’s reviewer said the standard model was sturdy enough to double as a stuff sack for loose items. The 15D monofilament is thin, but monofilament nylon resists snagging better than looser woven netting. It should survive a season of normal use without special care. It is not a net to stuff into a pocket full of keys.

Pros & Cons

Pros

• 23 g and tiny, with a stuff sack included
• 2,000 holes/in² stops no-see-ums, midges and sandflies, not only mosquitoes
• Black mesh gives usable visibility for walking and cooking
• Drawcord with barrel lock keeps the net seated in wind
• Holds up to brush and thorns better than its weight suggests

Cons

• Needs a brimmed hat to keep the mesh off your face
• Finer mesh is slightly warmer and harder to see through than a mosquito net
• Covers only the head and collar, so there is no ventilated chest or armpit anchoring
• Not treated with permethrin, so it is a pure physical barrier

Who Should Buy This

Anyone who hikes where no-see-ums, midges or sandflies are a real problem should buy this: coastal trails, the Northeast and Great Lakes in black fly season, the Southeast in summer, and Scotland. It also suits thru-hikers who want a single head net that covers the Sierra mosquito bloom and the buggy lowland sections that follow. Hikers who only face large mosquitoes in dry mountain terrain can save a few grams and a bit of airflow with the standard net. Anyone who wants repellent built into the fabric should look at the Insect Shield version instead, accepting its coarser mesh.

Verdict

The Ultra-Mesh Head Net does one job in a few grams of black nylon and does it well. Its mesh is fine enough to keep out the bugs that coarser nets miss, and it weighs less than most spare stuff sacks. Pair it with a brimmed hat and keep it in the lid pocket from June through September.