The Threshold Lab
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Issue #28: Holiday Break

Issue #28: Holiday Break

And Black Friday deals from my partnerships

Stephen Pelkofer
November 28, 2025 • Estimated Reading Time: 3 minutes

✍️ Author’s Note

Welcome back to The Threshold Lab! I’m Stephen Pelkofer, an aspiring HYROX Elite 15 athlete (can’t wait to remove aspiring in January 2026 😁 ), data nerd, and The Threshold Lab founder.

This week, we’re taking a break from from training research for the holiday. This issue will just showcase some of the black Friday deals that the companies I partner with are offering. We will be back to regularly scheduled programming next week. Check out one of our older issues here to get a refresher!

1st Phorm Black Friday Deals

1st Phorm has some exceptional giveaways going on if you spend > 150, 250, or 350 in a single order. You can check out those deals here: 1st Phorm Black Friday.

Outside of that, these are my staple 1st Phorm Products that I use daily:

1st Phorm Ultra-Formance – for pre and intra workout carbs
Project-1 Pre Workout – my pre-workout of choice for hard workouts and race day
1st Phorm Ignition and Phormula-1 Clear Whey Protein – in my opinion, the best post-workout stack for endurance athletes out there.

Other callout: We have moved on from Pumpkin Spice Lattes to Peppermint Lattes – you can check out all of the Peppermint Protein powders and bars here 1st Phorm Peppermint Products.

Cuts Black Friday Deals

Cuts clothing has always been my goto for high-quality casual wear. It looks good and it lasts, unlike other similar brands I have tried.

Cuts has up to 60% off this weekend for Black Friday, and you can use my link to take an extra 5% off of that: https://shop.cutsclothing.com/PELKOFER.

Sweathouz Black Friday Deals

Sweathouz is offering discounted session packs for Black Friday. You can also use my code SPELK10 for $10 off your first session and SPELK for any session pack that you purchase.

Sweathouz feels like a premium experience every single time I go there, and it has been a huge asset to have this for a once/week recovery and relaxation session. My routine is 15 min sauna → vitamin-c shower → 5 min cold plunge for two rounds.