巴西采购需求：UTMB-12L

I'm looking to purchase some outdoor gear for upcoming events and would appreciate your assistance. Specifically, I need 4 units of 600ml soft flasks, a pair of carbon fiber trekking poles in two different sizes (110cm and 120cm), and either a 12L or 10L trail running backpack in sizes M and XXL for my needs. I've got a 50km trail event on April 11 and another one on June 26, so I'd like to trial these products before my races. Please let me know if you can provide these items, along with any relevant details or recommendations. Thanks!