SWIMS recommends ordering 1 full size down . Adventuring never looked so stylish with the SWIMS Breeze Tennis Knit Sneakers. Lightweight woven knit upper. Perforated sides allows for breathable comfort. Traditional lace-up closure. Ventilation feature at midsole. Fabric lining. Cushioned fixed insole. Flexible rubber sole. Imported. Measurements: Weight: 12 oz Product measurements were taken using size 11 width M.Weight of footwear is based on a single item not a pair.