This is a pouch with a cooling sheet on the inside ✾ It's convenient for use with ice packs, as a case for ice rings, and for storing easily melted items like chocolate and juice!!! It uses a washable aluminum insulation and cooling sheet. Please wash gently in a laundry net. (Do not use a dryer) The strap has a snap, so you can hang it on your bag ◎ (See image 5) It's made without gussets so it won't take up much space in your bag or backpack! 【Size】 20 x 18 cm (no gusset) Handle: 19 cm (It's sized to fit a large ice ring ※See image 6) 【Color/Pattern】 Light Green/Check