Preston Shamblen

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Nike Interact Run Running Shoes Sneakers – Blue/Orange – Men’s [10.5] – Used

Nike Interact Run running shoes in a blue/indigo upper with orange accents. Lightweight, breathable mesh upper with a cushioned foam midsole — great for walking, casual running, gym use, or everyday wear. Condition: Used. Shows normal wear from regular training (visible dirt/scuffs on the midsole and some cosmetic wear on the upper/swoosh stitching as seen in photos). No major structural damage…

Nike Interact Run Running Shoes Sneakers – Blue/Orange – Men’s [10.5] – Used

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Nike Flywire Running Shoes – White/Black – Men’s 10.5 – Used

Nike running shoes featuring Flywire lace support for a secure fit and a lightweight, breathable mesh upper. Comfortable foam cushioning makes these solid for walking, gym, casual wear, or light running. Size: Men’s 10.5 Condition: Used. Shows normal training wear and some dirt/scuffs on the midsole/upper as pictured. No major structural damage noted — please review photos for exact condition. I…

Nike Flywire Running Shoes – White/Black – Men’s 10.5 – Used

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Hi-Tec Waterproof Trail/Hiking Shoes – Black/Gray – Men’s 10.5 – Used

Hi-Tec waterproof trail/hiking shoes in black/gray with yellow accents. Rugged outsole for traction and a breathable upper with supportive overlays — great for walking, hiking, trail use, work/outdoors, or rainy days. Size: Men’s 10.5 Condition: Used. Shows normal wear from regular outdoor/training use (light scuffs/dirt on the upper and midsole as pictured). Still a solid pair for anyone wanting…

Hi-Tec Waterproof Trail/Hiking Shoes – Black/Gray – Men’s 10.5 – Used

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Magellan Outdoors Trail Running / Walking Shoes – Olive/Green – Men’s 10.5 – Used

Magellan Outdoors athletic/trail shoes in olive/green with a breathable mesh upper, supportive overlays, and a rugged outsole for traction. Good for walking, gym, casual wear, light trail use, and everyday training. Size: Men’s 10.5 Condition: Used. Shows normal training wear (dirt/scuffs on midsoles and outsole as pictured). Tread still has usable life (see sole photos). Please review all photos…

Magellan Outdoors Trail Running / Walking Shoes – Olive/Green – Men’s 10.5 – Used

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Nike Interact Run Running Shoes – Blue/Orange – Men’s 10.5 – Used

Nike Interact Run running shoes in blue with orange accents. Lightweight, breathable mesh upper with a cushioned foam midsole — great for walking, gym workouts, everyday wear, or light running. Size: Men’s 10.5 Condition: Used. Shows normal training wear (dirt/scuffs on the midsole and some cosmetic wear on the upper/swoosh stitching as shown). Please review photos for exact condition. I go…

Nike Interact Run Running Shoes – Blue/Orange – Men’s 10.5 – Used

[prestonshamblen]

Nike Interact Run Running Shoes – Blue/Orange – Men’s 10.5 – Used

Nike Interact Run running shoes in blue with orange accents. Lightweight, breathable mesh upper with a cushioned foam midsole — great for walking, gym workouts, everyday wear, or light running. Size: Men’s 10.5 Condition: Used. Shows normal training wear (dirt/scuffs on the midsole and some cosmetic wear on the upper/swoosh stitching as shown). Please review photos for exact condition. I go…

Nike Interact Run Running Shoes – Blue/Orange – Men’s 10.5 – Used

[prestonshamblen]

Magellan Outdoors Trail Running / Walking Shoes – Olive/Green – Men’s 10.5 – Used

Magellan Outdoors athletic/trail shoes in olive/green with a breathable mesh upper, supportive overlays, and a rugged outsole for traction. Good for walking, gym, casual wear, light trail use, and everyday training. Size: Men’s 10.5 Condition: Used. Shows normal training wear (dirt/scuffs on midsoles and outsole as pictured). Tread still has usable life (see sole photos). Please review all photos…

Magellan Outdoors Trail Running / Walking Shoes – Olive/Green – Men’s 10.5 – Used

[prestonshamblen]

Hi-Tec Waterproof Trail/Hiking Shoes – Black/Gray – Men’s 10.5 – Used

Hi-Tec waterproof trail/hiking shoes in black/gray with yellow accents. Rugged outsole for traction and a breathable upper with supportive overlays — great for walking, hiking, trail use, work/outdoors, or rainy days. Size: Men’s 10.5 Condition: Used. Shows normal wear from regular outdoor/training use (light scuffs/dirt on the upper and midsole as pictured). Still a solid pair for anyone wanting…

Hi-Tec Waterproof Trail/Hiking Shoes – Black/Gray – Men’s 10.5 – Used

[prestonshamblen]

Nike Flywire Running Shoes – White/Black – Men’s 10.5 – Used

Nike running shoes featuring Flywire lace support for a secure fit and a lightweight, breathable mesh upper. Comfortable foam cushioning makes these solid for walking, gym, casual wear, or light running. Size: Men’s 10.5 Condition: Used. Shows normal training wear and some dirt/scuffs on the midsole/upper as pictured. No major structural damage noted — please review photos for exact condition. I…

Nike Flywire Running Shoes – White/Black – Men’s 10.5 – Used

[prestonshamblen]

Nike Interact Run Running Shoes Sneakers – Blue/Orange – Men’s [10.5] – Used

Nike Interact Run running shoes in a blue/indigo upper with orange accents. Lightweight, breathable mesh upper with a cushioned foam midsole — great for walking, casual running, gym use, or everyday wear. Condition: Used. Shows normal wear from regular training (visible dirt/scuffs on the midsole and some cosmetic wear on the upper/swoosh stitching as seen in photos). No major structural damage…

Nike Interact Run Running Shoes Sneakers – Blue/Orange – Men’s [10.5] – Used

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The Rucking App is officially live on Android. I built this after realizing watches and fitness apps massively undercount rucking. This app uses your weight, pack weight, distance, effort, and pack type to give you a much more realistic calorie estimate—based on the same formulas powering my rucking

I Built the Rucking App I Wish I Had When I Started

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Picked up a trap bar and over 500 lbs of bumper plates for around 70¢/lb — best Prime Day deal I’ve seen for home gym gear. Perfect for fighting desk posture. 💪 #FitnessDeals #HomeGym #CAPBarbell

Why I Bought a Trap Bar and Two Sets of CAP Bumper Plates During Prime Day

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Check out my new custom 26-foot carbon fiber pool pole — four sections, three quick releases, and way stronger than aluminum. This is the upgrade I’ve been waiting for.

My Custom 26-Foot Carbon Fiber Pool Pole

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Daily Prompt — What Life Without a Computer Looks Like

Your life without a computer: what does it look like? Today’s writing prompt asked: “Your life without a computer: what does it look like?” For me, it honestly wouldn’t look that different. I already spend hours every day outside—rucking with a weighted vest, working in the Texas sun, and taking on the kind of physical challenges that don’t require a screen. The sunshine doesn’t bother me, the…

Daily Prompt — What Life Without a Computer Looks Like

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Starship can’t even reach orbit, let alone Mars. Saturn V had a return plan. The rocket equation doesn’t lie — and it’s time people knew the math behind the myth.

Why I Made the Rocket Equation Calculator (and What It Means for Space Travel)

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Most tools and watches undercount what rucking really does. That’s why I built a weight loss calculator designed specifically for ruckers. Enter your stats — and find out how long it'll take to hit your goal.

🧠 Why I Built a Full Rucking Weight Loss Calculator