THICK SERIES - Pay a bit little more, you would get a personal item bag much more durable and thicker, no need to worry any ripping or break during trips. No extra shoulder strap is included for model 1112. If you prefer to have a strap, pls refer to model 3112 or 1109 Important:【Model：T1112】The bag size is 17.7 x 12.6 x 6.3 inch fits personal item size 18 x 14 x 8 inch of Spirit Airlines & Frontier Airlines, which can be placed under seat and no need to pay carry-on. We compare the bag to 15.6 inch laptop for you to better understand real bag size, pls double check the size before purchase to ensure it meets your expectation HOLD SHAPE. Still worried it is too collapsed? Upgraded with superior material and construction, the bag can hold its shape when empty. Feel comfortable when carrying EASY CARRYING - Its external storage pocket offers quick access to small items. The pouch as a strap enables the duffel to fit over the handle of common suitcase 18 20 24 26 28 32 inch for easy carrying VERSATILE - Easily held all your gym or travel items, ideal for garment bag, sports, gym use, yoga, travel, weekend shopping, overnight, camping and picnic Folding up into a small pouch does not take much space in your luggage, unfolded as extra bag for souvenir or clothes when travelling leaves room for valuables in your suitcase, or used as a carry-on with decent size to fit under an airline seat or in the overhead bin in case you are overweight for a checked bag.Creative Use More Than Travel Gym Bag or Sports BagGreat to stash your workout clothes, running shoes, water bottles, towels or sports gear.Camping Bag Great to hold a couple days of clothes, sunscreen, first aid kit, toiletries, water bottle, towel, snacks, and wet weather gear all in this bag.Beach Bag Ideal to take to the beach, since you can easily fit a towel, sunscreen, snacks, and other beach necessities inside.Gear Storage Simply store your camping gear, clothing, or any other items in your closet or under your bed. You can fold or twist it into any shape you want, making it fit nicely into whatever space is available