--- product_id: 72755918 title: "Pocket Gym Diary –100-page workout log. Handy size (3 x 5 inch) - fits in any pocket. 100% waterproof and sweatproof fitness training diary." brand: "polymath products" price: "R$153" currency: BRL in_stock: true reviews_count: 8 url: https://www.desertcart.com.br/products/72755918-pocket-gym-diary-100-page-workout-log-handy-size-3 store_origin: BR region: Brazil --- # 100% waterproof & sweatproof stone paper Compact 3x5 inch size 100 pages, logs 10 exercises x 5 sets Pocket Gym Diary –100-page workout log. Handy size (3 x 5 inch) - fits in any pocket. 100% waterproof and sweatproof fitness training diary. **Brand:** polymath products **Price:** R$153 **Availability:** ✅ In Stock ## Summary > 💪 Set your records in stone—never miss a beat, rain or shine! ## Quick Answers - **What is this?** Pocket Gym Diary –100-page workout log. Handy size (3 x 5 inch) - fits in any pocket. 100% waterproof and sweatproof fitness training diary. by polymath products - **How much does it cost?** R$153 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/72755918-pocket-gym-diary-100-page-workout-log-handy-size-3) ## Best For - polymath products enthusiasts ## Why This Product - Trusted polymath products brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pocket-Sized Powerhouse:** Fits effortlessly in any pocket or gym bag for on-the-go logging. - • **Progress You Can See & Feel:** Extra pages for body measurements help you visualize your fitness journey. - • **Built to Endure Every Workout:** Spiral-bound with plastic covers for ultimate durability in any environment. - • **Comprehensive Workout Tracking:** Record up to 10 exercises and 5 sets each, with weight, reps, and cardio details. - • **Waterproof & Sweatproof Stone Paper:** Durable pages that survive sweat, spills, mud, and rain—your progress stays pristine. ## Overview The Pocket Gym Diary is a compact (3x5 inch), lightweight (61g) 100-page workout log made from innovative stone paper that is 100% waterproof and sweatproof. Designed for fitness enthusiasts who demand durability and portability, it allows detailed tracking of up to 10 exercises with 5 sets each, including weight, reps, and cardio metrics. Its spiral binding and plastic covers ensure resilience against mud, sweat, and spills, making it perfect for indoor and outdoor workouts alike. With dedicated pages for body measurements, it helps users monitor progress and stay motivated on their fitness journey. ## Description Never miss a personal best with the Pocket Gym Diary – the compact workout log that goes wherever you train. Made with 100% waterproof, sweatproof stone paper to protect your progress through every workout. Track exercises, sets, weights, and cardio to stay motivated and achieve your fitness goals. Never lose track of your progress with a compact gym diary that's ready for every training session. Log up to 10 exercises and 5 sets per exercise with space for weights, reps, cardio, and notes. Made with durable stone paper, the Pocket Gym Diary resists sweat, water, mud, grease, and spills. Train indoors or outdoors with a workout log that won't let you down. Designed to fit comfortably in your pocket or gym bag, this lightweight diary is always within reach. Record your workouts whenever and wherever you train. Stay motivated by recording every session and monitoring your lifting and cardio progression over time. Seeing your progress on paper is a simple way to stay focused on your fitness goals. The Pocket Gym Diary is a truly pocket-sized workout log book, to help you track your training progress and achieve your fitness goals. Unlike the other workout logs available, it’s made from stone paper, so it’s 100% waterproof and sweatproof! With 100 pages of workout logs, and space for recording 50 sets (10 exercises x 5 sets) per page, with boxes for noting weight and reps/time, you’ll be able to keep records of all types of workout that you do; free weights, resistance machines, cardio, HIIT, swimming, circuit training, etc. Anything’s possible! At a compact 3 by 5 inches in size, and weighing in at just 61g, there’s no reason not to be taking the Pocket Gym Diary along with you to every single workout. It easily slips into your pocket or a pouch on your gym bag, and it’s just the right size to hold in one hand and jot down your weights and reps between sets; perfect for keeping complete, accurate records of your workouts. Unique to the Pocket Gym Diary is its wood-free stone paper, which is completely waterproof and sweatproof, as well as being highly resilient to dirt & mud. This makes it ideal not only for gym workouts, but also recording swims, and pretty much any wet or muddy outdoor exercise you can throw at it; jogging, trail running, obstacle course training, outdoor HIIT sessions, cycling, snow sports, rowing, etc. So ready yourself to train hard, progress, achieve your goals, and set your records in stone with the Pocket Gym Diary! Pocket Gym Diary size: 134mm x 76mm x 13mm. Weight: 61g. ## Features - The Pocket Gym Diary – perfectly pocket-sized workout diary, featuring 100% waterproof and sweatproof ‘stone paper’ pages. - Track your progress - 100-page workout log, with versatile workout page design, providing space for recording 10 exercises, 5 sets per exercise, with boxes for weight and reps/time. - Record every workout – handy 3 x 5 inch size, so small enough to fit in any pocket or gym bag, and always come with you on your workouts. Spiral-bound with plastic front and back covers for durability. - Set your records in stone - unlike other workout diaries, the Pocket Gym Diary is made from stone paper, making it impervious to water, sweat, mud, and spilled sports drinks; keeping safe your hard-earned personal bests! - Achieve your goals - an extra page at the beginning and end of the log has space for recording your body weight and measurements, so you can see how far you’ve come. Pocket Gym Diary size: 134mm x 76mm x 13mm. Weight: 61g. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07FNW2QLZ | | Best Sellers Rank | 6,225 in Sports & Outdoors (See Top 100 in Sports & Outdoors) 9 in Fitness Planners | | Binding | Office Product | | Brand Name | Polymath Products | | Colour | Black | | Country Of Origin | China | | Cover Material | Paper | | Customer Reviews | 4.5 4.5 out of 5 stars (1,138) 4.5 out of 5 stars | | Item Dimensions L X W X Thickness | 34L x 19.3W x 3.3Th centimetres | | Item Weight | 69 Grams | | Manufacturer | Polymath Products | | Number Of Items | 1 | | Number Of Pages | 100 | | Paper Size | 3 x 5 inch) | | Pattern | Solid Color | | Special Feature | Waterproof | | Specific Uses For Product | Gym workouts, swimming, jogging, trail running, obstacle course training, outdoor HIIT sessions, cycling, snow sports | | Style | Modern | | Theme | Plain | | Unit Count | 1.0 count | ## Product Details - **Brand:** Polymath Products - **Colour:** Black - **Theme:** Plain - **Sheet size:** 3 x 5 inch) - **Pages:** 100 - **Cover material:** Paper - **Style:** Modern - **Special feature:** Waterproof - **Product dimensions:** 34L x 19.3W x 3.3Th centimetres - **Number of items:** 1 ## Images ![Pocket Gym Diary –100-page workout log. Handy size (3 x 5 inch) - fits in any pocket. 100% waterproof and sweatproof fitness training diary. - Image 1](https://m.media-amazon.com/images/I/819CLvrQFlL.jpg) ## Available Options This product comes in different **Colour Name, Item Package Quantity** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect for the job *by on Reviewed in the United Kingdom 18 September 2025* Love this book and repeatedly purchase it. It’s the perfect size for your pocket, is good quality so won’t easily tear. Sellers are great also and when I had a small issue with the end pages of one book they sent a full replacement. Don’t usually leave reviews but these books are so great they deserve it. ### ⭐⭐⭐⭐⭐ Handy size *by on Reviewed in the United Kingdom 10 June 2026* nice little notebook that fits easy in the pocket ### ⭐⭐⭐⭐ Ideal. *by on Reviewed in the United Kingdom 21 August 2025* A neat little set tracker pad. Could be a little bigger but, it's being used well. ## Frequently Bought Together - Polymath Products Pocket Gym Diary –100-page workout log. Handy size (3 x 5 inch) - fits in any pocket. 100% waterproof and sweatproof fitness training diary. - illusion Small Microfibre Gym Towel for Active Sports (40x80cm) - Lightweight Quick Dry Towel - Ideal for Cardio, Cycling, Strength Training, Yoga, and Running, Perfect for Athletes Training Outdoors - Ultimate Gym Workout Log Book, 100 Page - XL A5 Exercise, Fitness and Training Planner & Gym Journal - Set Goals & Track Progress - for Men and Women (Black) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.br/products/72755918-pocket-gym-diary-100-page-workout-log-handy-size-3](https://www.desertcart.com.br/products/72755918-pocket-gym-diary-100-page-workout-log-handy-size-3) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-09-27*