Package Include: you get 25 pieces drawstring bags, these drawstring bags are in solid white, you can DIY pattern or mark your name on these blank drawstring bags easily, enough quantity to meet your daily use and replacement needs, you can also share these gym bags with your family and friends, which be good gifts DIY Sublimation Bags: the drawstring backpacks are suitable for DIY diverse distinctive patterns for sublimation, which can fix the DIY image printed by hot pressing, staying 15-20 seconds on a heat transfer machine in printing temperature 250 degree Celsius; Note: do not let the drawstring come into contact with the heat transfer machine, you can wrap the bag around a pressing pillow and that only the part you are sublimating is near the heat Large Capacity: the drawstring gym backpack bags are designed with large capacity , big enough to carry a pair of shoes, bottle, basketball, umbrella, a few books, lunch or clothing and other daily necessities, these drawstring