Outdoor Research Sentinel Brim Hat


Different size or color?


Add to CartUnavailableNotify MeSpecial Order
, - (Sku )
(% off)
  • Select an item for delivery date
    via standard shipping  
    Special Order: Enter a zip for delivery date
    Estimated to ship Apr 21 - details
    Enter a zip for delivery date
    Estimated to ship Apr 21 - details
    Special Order - Delivery: ,  
    Estimated, via standard shipping  
  • $ extra handling fee
  • 30-day Guarantee & Easy Returns
  • Ground only within 48 contiguous U.S. only
  • CS: Ships from
  • CS: on hand


To heck with pesky, biting, swarming, buzzing bugs; the Outdoor Research Sentinel Brim Hat™ is treated with Insect Shield® and helps protect against mosquitoes, ticks and other biting insects, including those that can carry disease. The wide brim, SolarShield™ construction, mesh vents, and lightweight, UPF 30 fabric keeps you covered and cool on adventures in hot climates.


  • Insect Shield® clothing repels mosquitoes, ticks, ants, flies, chiggers and no-see-ums, reducing the need for topical repellents
  • Insect Shield® is odorless and EPA-registered; effectiveness against insects is good for 70 washings
  • SolarShield™ construction
  • Supplex® nylon fabric; UPF 30
  • Foam-stiffened brim f
  • TransAction™ headband for comfort and moisture management
  • Mesh side panels aid ventilation
  • External drawcord adjustment
  • Removable chin cord with cordlock

Find More

Review Summary

5 out of 5

3 Reviews

  • Great design: 3
  • Performance: 2
  • Build quality: 1
  • Ease of use: 1

Comfort: 4.7 / 5
Quality: 4.7 / 5
Durability: 4.5 / 5

3 Ratings & Reviews

Comfort: 4 / 5
Quality: 5 / 5

25-34 yrs

April 21, 2012

This hat is great! It is lighter than I expected and does a great job protecting your face from the sun whether hiking or on the beach. I also like the mesh panels on the side, they really do keep your head cooler on hot days. I haven't had this hat long so I cannot comment on the durability, but I do not foresee any issues.

Pros: Great design
Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
from Tampa Bay, FL

Hubby loves this hat
August 07, 2011

My husband loves this hat. He wears it on a daily basis at Home Depot outside. He says the vents help keep him cool in the hot Florida summer and it keeps the bugs away. He loves that it is light and washable. great hat

Pros: Great design, Performance, Ease of use
Comfort: 5 / 5
Durability: 4 / 5
Quality: 4 / 5
from New Hampshire
45-54 yrs

Very comfortable hat
December 20, 2012

I love hats, and with a larger-than-average noggin, I have a hard time finding hats that are truly comfortable. I cannot fit into one-size-fits-all hats at all. This hat in XL fits great, and the adjustment cord is helpful for small adjustments depending on weather and wind. I also like that the chin strap is easily removable. My only complaint is the large logo; I prefer that logos if they appear at all, be unobtrusive. However, this one complaint will not keep me from enjoying this hat. Note: I have not yet had the opportunity to evaluate the built-in insect repellent; but I will see during our famous black fly season in NH!

Pros: Great design, Build quality, Performance, Great value

Also Available

Outdoor Research Sentinel Brim Hat Photo

Evergreen, Khaki and Walnut Plaid.

Available sizes, while supplies last, include size small, size medium, size large and size extra large: s, m, l, xl.

Others Liked:

You've Viewed:

  • Talk to Us:
    (800) 369-3949
    Live Chat
  • We're Available:
    Mon-Fri: 7:30am-4:00pm PST
    Sat-Sun: CLOSED