Speed endurance training is similar to speed or sprint training, however there are two important distinctions: Repetitions should last from 30 seconds up to 2-3 minutes as opposed to 5-10 seconds for speed drills.
Personal item. The maximum dimensions for your personal item that fits under the seat in front of you, such as a shoulder bag, purse, laptop bag or other small item, are 9 inches x 10 inches x 17 inches (22 cm x 25 cm x 43 cm). If you are traveling on a Basic Economy ticket, your personal item will be the only item you can bring on board.
The maximum size for the carry-on luggage is 21 inches by nine inches by 15 inches (53.3 by 22.8 by 38.1 centimetres) â about the same as the larger of two carry-ons allowed under the previous standards. Personal items include smaller things such as small purses, laptop bags or child restraint devices.