Normally, the military discounts programs on some occasions of the year. In order to know whether it is offered or not is depended on Hydro Flask's policy sales, you can visit the store now for your reference.

In case you enter a discount code during checkout that doesn't exist or isn't currently active, then you can see the message: “Unable to find a valid discount matching the code entered”.

To use the Hydro Flask coupons on their website, you need to meet the conditions:

•  The items you choose must meet all coupon requirements as explained in the Terms and Conditions.

• The coupon has not expired. 

• The seller uses the Hydro Flask checkout system or a customized checkout system that accepts the coupon.

Please check out Hydro Flask's site to be sure that there are available Hydro Flask coupons for promotions or Customer Service at that time. In case you are chosen to obtain those available coupons, you may receive your coupon by email, or a mailed catalog or postcard.

Of course not, most coupons may be used only by you when you received them directly from Hydro Flask. As the Hydro Flask coupon includes your User ID, it cannot be resold or transferred in any way.

Normally, one discount code is only applied for one offer. However, If the users put a vast of items in their cart, it is easy to use one coupon code to purchase items. It depends on Hydro Flask's policy, you can contact Hydro Flask via mail for your reference.