2 current good Under Armour offers:
Get 13.2% cashback via TopCashBack
To activate the offer visit https://www.topcashback.co.uk/under-armour-ie (registering takes a few minutes)
Click on the link to go to Under Armour site. It’s important to do this via the TopCashback Under Armour page so your visit is tracked.
Spend at Under Armour and you will receive 13.2% of the cost back onto your TopCashback account.
Get 12 Aer Lingus Avios points for each €1 spent at Under Armour online. It’s normally 8 points but up to 12 during this promotion.
To activate the offer visit the Aer Lingus eStore Under Armour page (login details same as the Aer Club) https://estore.aerlingus.com/retailers/under-armour-ie
Click through from eStore to the Under Armour site and spend
You will receive Avios points onto your Aer Lingus account (usually takes a week or two)