Home › AVANTI GO CUP - 2 Sizes AVANTI GO CUP - 2 Sizes The go cup closes securely, comes apart easily for cleaning, is twin wall insulated, fits in most cup holders and looks good. It has everything really. Stainless Steel / 280ml - $13.00 Stainless Steel / 410ml - $15.00 Stainless Steel / 473ml - $17.00 Natives / 410ml - $18.00 Natives / 280ml - $16.00 Shipping is free on orders over $75.