The 12 Days of Giving

We’ve got some exciting giveaways to offer our athletes this season with our 12 Days of Giving promotion. Each day from December 1st to December 12, 2023, when you make a purchase from Nix Biosensors, you’ll have the chance to win a gift from one of our training and hydration partners. We’ve curated a top tier hydration and recovery lineup to support you in all your sweat endeavors.

There are over $1,800 worth of prizes being awarded during the timeframe. There is a LMNT INSIDER Bundle, a Hyperice Hypervolt Go 2, performance sportswear from PYNRS, $200 towards a Destination Marathon's package, a Spring Marathon Training Program from Carleth's Run Club and much more.

Place an order with Nix Biosensors today and you will automatically be entered to win the giveaway of the day. Orders must be placed before 11:59pm EST daily. If you aren’t selected for today's giveaway item, you will automatically be entered to win the giveaway for all of the days following. The sooner you order, the better chance you have to snag one of these gifts for yourself.

The Lineup

SaltStick FastChews Mixed Box

SaltStick FastChews are chewable electrolyte tablets that can be absorbed up to 4x faster than other hydration products. Specifically formulated to replenish the electrolytes lost in sweat, FastChews are a convenient, delicious way to improve hydration levels.

Why we love it: They’re a great boost for salty sweaters who need extra electrolytes!

Two $30 REI Co-op Gift Cards (total of $60)

Receive two $30 gift cards to REI Co-op this holiday season! Share the gift of the outdoors with a friend… or keep both for yourself!

Why we love it: Gift cards give you the flexibility to stock up on the gear you need the most.

INFINIT Nutrition Custom Fuel and Hydration Blend

INFINIT Custom Blends are all-in-one nutrition solutions that are customized to the individual (calories, electrolytes, flavor, caffeine, protein, etc) and eliminate the need for gels, chews, bars, and extra salt supplements.

Why we love it: The Custom Blend comes with a free consultation with INFINIT's Head Formulation Specialist/Sports Dietitian and a Personalized Hydration Analysis/Report based on your Nix Biosensor Results.

MXXY Flexx™ 2.5-Liter Hydration System

The Flexx™ hydration system delivers your water, supplements or a customizable blend of both. Adjust your mix on the fly as the conditions or your exertion levels change for perfectly dialed hydration at every point in your adventure.

Why we love it: The Dual Reservoir allows you to carry your water and vital supplements at once with no extra bottles.

HydraLyte Powder Sticks

HydraLyte is a hydration accelerator backed by science and packed with electrolytes. It’s proven to rehydrate you faster and more effectively than water alone. This four pack, valued at $126, includes 100 powder sticks showcasing a variety of their collections.

Why we love it: We love the variety of flavors and the subtle fizz.

RNWY Foundation

RWNY exists to keep runners running. Whether it’s your first 5k or your fastest mile yet, they believe that everybody should be fueled with the essentials to keep moving.

Snag this All-in-One daily supplement, water bottle and travel packs to support your athletic longevity.

Why we love it: In addition to vitamins and electrolytes, each blend includes BioActive Collagen Peptides for joint health and L-Carnitine for energy metabolism.

Hyperice Hypervolt Go 2

The ultimate portable and mini massage gun. Lightweight, versatile, and sleekly designed, it offers relief on-the-go – massaging away stress and tension, loosening muscle knots, and targeting fatigue. It’s more than just an ordinary massage gun – it’s designed for go-getters like you to help you do what you love, more.

Why we love it: It’s small enough to fit into your gym or travel bag ensuring relief before (and after) a workout or race.


The newest NOVABLAST has been updated and features a new midsole and outsole geometry that helps produce an energized ride.

Why we love it: The FlyteFoam Blast and Eco midsole (made with 20% recycled bio-based content) makes it lighter but also delivers more protective and softer landings.

LMNT INSIDER Bundle and Stay Salty Yeti Rambler

LMNT is a tasty electrolyte drink mix and is perfectly suited for folks following a keto, low-carb, or paleo diet. The INSIDER Bundle comes with your choice of four flavors, a total of 120 sticks. As an added bonus, LMNT is also including their 18 oz Yeti Rambler.

Why we love it: The Stay Salty Yeti Rambler makes sure that you sip your salt with substance and style no matter where you are.

PYNRS Sydney Performance Hoodie and Burrell Beanie

PYNRS is a performance streetwear brand that focuses on serving diverse people, with diverse body types from diverse communities.⁠ Like the rest of their line, the 23 Sydney Performance Hoodie and Burrell Beanie combines streetwear design concepts with high performance Italian fabrics.

Why we love it: With a fitted upper and a relaxed lower body fit fit, this hoodie is stylish and functional. The beanie gives you no excuse to skip a workout on cold days.

Destination Marathons Gift Card

Destination Marathons is a runner-founded, IATAN certified, boutique travel agency, specializing
in elevated experiences for runners and spectators. They are providing $200 off a trip package and will handle all logistical details so guests can focus on the race, build friendships, and create memories.

Why we love it: Training for a race is hard enough, we love how Destination Marathons ensures a true VIP experience.

Carleth's Run Club Super Spring Marathon Training Bundle

Carleth Keys ran her first marathon in 2019 and has since developed a passion for running.  She has since completed several marathons and is now an influential content creator.  She has joined forces with amazing coaches and will be offering a Spring Marathon Plan that includes everything you need to get to the finish line, including live weekly meetups, nutrition, strength training and more! 

Why we love it: This 18-week training program also includes a nutrition, strength and recovery plan to ensure you are ready for the big day.

List of All Products Included in the Promotion

Day 1: SaltStick FastChews Mixed Box. 12 packs per box, mixed flavors.

Day 2: Two $30 REI Co-op Gift Cards (total of $60). Physical gift cards will be mailed to the winner. Terms and conditions for REI Co-op gift cards found here.

Day 3: INFINIT Custom Blend comes with a free consultation with INFINIT's Head Formulation Specialist/Sports Dietitian and a Personalized Hydration Analysis/Report based on your Nix Biosensor Results.

Day 4: MXXY Flexx™ 2.5-Liter Hydration System.

Day 5: HydraLyte Powder Sticks. The four pack includes HydraLyte Plus Liver Support, HydraLyte Plus Apple Cider Vinegar, HydraLyte Original Variety Pack, HydraLyte Plus Energy Boost. Total of 100 sticks in all.

Day 6: RNWY Foundation Pouch (16.9 oz), Water Bottle, and Travel Packs.

Day 7: Hyperice Hypervolt Go 2 Black.

Day 8: Asics NOVABLAST 4 sneakers. Winner will select Men's or Women's shoes, width and size.

Day 9: LMNT INSIDER Bundle and Stay Salty Yeti Rambler. Winner will select four flavors for the INSIDER bundle. 30 sticks per box, total of 120 sticks.

Day 10: PYNRS 2023 Sydney Performance Hoodie in Black and Burrell Beanie in Deep Olive.

Day 11: $200 Gift Certificate towards a Destination Marathon travel package. Gift certificate must be used within 24 months of receipt.

Day 12: Carleth's Run Club Super Spring Marathon Training Bundle (18-week plan). Includes access to Carleth's Running Coaches. 18-week run, nutrition, strength, yoga/meditation/mental preparation, and recovery plan.

The 12 Days of Giving: Terms & Conditions

Promotion runs from December 1, 2023 to December 12, 2023. Orders placed between 12am EST and 11:59pm EST each day will qualify for that day’s drawing. A single prize will be selected per day. Non-winners will be entered into subsequent daily drawings. Individuals can only win one prize during the entire 12 Days of Giving promotion. Orders must have a valid United States or Canada shipping address. Winners will be contacted via email within 10 business days. If prize is not acknowledged and accepted within 14 days, a new winner will be drawn for that day. Offer is not valid on prior/pending orders. Offer valid only at

Please note, our partners reserve the right to substitute their prize with one of equal or greater value. Each prize will be fulfilled directly by our sports and hydration partners. Please allow up to 4 weeks for processing of winning prize.