The bestselling Ninja Thirsti bottle has hit its lowest ever price thanks to a triple deal stack, just in time for the bank holiday weekend and forecasted heatwave. Savvy shoppers can now grab one for as little as £12.87, plus £3.50 postage, by combining a flash sale with a new member bonus from money-saving platform TopCashback.
The Ninja Thirsti is a versatile insulated bottle compatible with hot, cold and fizzy drinks. The 530ml Travel Bottle (Lavender) has been reduced from its £30 RRP to £24.99. New TopCashback members who sign up for free receive a £15 bonus on their first qualifying purchase, plus standard cashback, bringing the final cost to £12.87 — a 57% saving. The larger 700ml version, on sale for £29.99 (down from £34.99), drops to £17.74 after the same stacking, saving 49%.
Existing TopCashback members can still benefit: the 530ml bottle costs £27.87 after standard cashback, and the 700ml costs £32.74. The Thirsti is now available in 11 colours, including lavender, tropical blue and mint green, and has earned over 500 five-star reviews since its 2024 launch.
Customer feedback highlights its performance: one user said it keeps fizzy drinks fizzy for about six hours, while another praised its durability and dishwasher-safe design. However, some found hot drinks didn't stay hot for the claimed 12 hours. A helpful tip from a buyer suggests pre-warming the bottle with boiling water to extend heat retention.
