Does the 24 oz twin pack come with a sprayer?

I would imagine it does. That's not the package I purchased.

How much permethrin is in the solution? .5%?

The solution is 1/2%. The mix is the center range for that chemical and is based of the application onto fabric.

Should I spray it on panties and bra?

I would only spray it on clothing exposed to the outside - socks included. You do not need to use it on clothing that is covered by outwear.

I've seen where this has been sprayed on long sleeved shirts & pants! Will it work on summer shorts & shirt sleeved shirts?

The use of permethrin is primarily for both mosquitoes and ticks. So when we are talking about ticks I do not think it will offer very much protection because a tick needs to crawl across treated fabric in order to receive a lethal dose. With shorts on they will probably never get to cross that fabric and instead get under the cuff. You could use a good 30% deet or 20% picaridin on skin and clothing to help protect against ticks, also for mosquitoes. Mosquitoes are generally repelled by the chemical and you should also use a skin applied repellent at the same time. So there's benefit for mosquitoes but not for the ticks. Your protection from insects with or without a chemical treatment is your clothing and that means to cover most of your body and deny access to your skin by wearing the garments defensibly. I hope this is of some help.

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Sawyer Products Premium Permethrin Insect Repellent for Clothing, Gear & Tents

Sawyer Products Premium Permethrin Insect Repellent for Clothing, Gear & Tents

Product ID: 207200183

Details

Brand
Sawyer
Item Form
24-oz Trigger
Item Volume
24 fluid
Material Feature
Recyclable
Scent
Unscented

⏳Lasts 6 weeks/6 washes

🦟Kills 55+ insect species

🧥Safe on clothing & gear

$212.74

Duties & taxes included

In stock

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Description

🛡️ Gear up, bug out, and stay unstoppable!

LONG LASTING SHIELD - Up to 6 weeks of odorless, invisible protection that won’t wash away or stain.
GEAR FRIENDLY FORMULA - Bonds to fabrics without damage—perfect for your favorite outdoor apparel and tents.
SCIENTIFICALLY PROVEN - Reduces tick bites by 73.6x—backed by University of Rhode Island research.
DUAL PROTECTION STRATEGY - Pair with Sawyer Picaridin for skin to conquer bugs head-to-toe on every adventure.
UNMATCHED INSECT DEFENSE - Repels ticks, mosquitoes & more—protection as strong as 100% DEET.

Sawyer Premium Permethrin Insect Repellent is a powerful, odorless spray designed to protect clothing, gear, and tents from over 55 insect species including ticks and mosquitoes that carry diseases like Lyme and Zika. Lasting up to 6 weeks or 6 washes, it bonds safely to fabrics without staining or damage. Scientifically proven to reduce tick bites by over 70 times, this EPA-recommended repellent is a must-have for outdoor professionals and adventure seekers aiming for reliable, long-lasting insect defense.

Specifications

ASIN	B07CD9NFB4
ASIN	B00MA950E0
Best Sellers Rank	41,410 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 227 in Insect & Pest Repellents
Brand Name	Sawyer
Customer Reviews	4.7 4.7 out of 5 stars (8,778)
Customer reviews	4.7 4.7 out of 5 stars (8,778)
Date First Available	19 Aug. 2016
Global Trade Identification Number	00050716065725
Included Components	Two 24-ounce spray bottles
Item Form	Aerosol
Item Nype Name	Insect Repellent
Item Volume	24 Fluid Ounces
Item model number	SP649-P
Manufacturer	Sawyer Products
Manufacturer Part Number	SP6572
Material Features	Recyclable Bottle
Model Number	SP6572
Number of Items	2
Scent Name	Unscented
Size	709.76 ml (Pack of 2)
UPC	050716065725
Unit Count	1419.5294 millilitre

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