The Tasman always fits tight at first especially if someone has a high instep or high volume foot. It does stretch out over time. If you are in between sizes, please size up or down based on the volume of your foot and height of your instep. Take the Tasman from weekday lounging to a Saturday excursion! This slip-on slipper is made of nylon and features a breathable and antimicrobial mesh lining. Cushioned foam footbed for optimal comfort. Silicon UGG graphic, supportive EVA midsole, and translucent rubber outsole. Imported. Measurements: Weight: 12 oz Product measurements were taken using size 9, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.