Gel packs

Carry on baggage
Yes (<100ml)
Checked baggage
Yes

Gel packs: 100 ml (3.4 oz.) or smaller container permitted in carry-on. Gel and ice packs are subject to the liquid restrictions. They are exempt from the restrictions on liquids when required to treat an injury or when used to refrigerate baby food, milk, breast milk, formula, water and juice for infants under 2 years of age (0-24 months), medically necessary items and medication.