--- product_id: 647014768 title: "Memory Foam Seat Cushion for Office Chair, 3-Inch, Gray" brand: "tranquilrelax" price: "¥9030" currency: JPY in_stock: true reviews_count: 8 url: https://www.desertcart.jp/products/647014768-memory-foam-seat-cushion-for-office-chair-3-inch-gray store_origin: JP region: Japan --- # Non-slip ergonomic curved edge Premium soft foam, year-round pliability 17.7x16.1x3 in large size Memory Foam Seat Cushion for Office Chair, 3-Inch, Gray **Brand:** tranquilrelax **Price:** ¥9030 **Availability:** ✅ In Stock ## Summary > 🪑 Elevate your sit game—comfort that works as hard as you do! ## Quick Answers - **What is this?** Memory Foam Seat Cushion for Office Chair, 3-Inch, Gray by tranquilrelax - **How much does it cost?** ¥9030 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/647014768-memory-foam-seat-cushion-for-office-chair-3-inch-gray) ## Best For - tranquilrelax enthusiasts ## Why This Product - Trusted tranquilrelax brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Stay-Put Stability:** Non-slip bottom with ergonomic curve keeps the cushion firmly in place—no slipping, no distractions. - • **All-Season Softness:** Premium soft foam stays pliable even in winter, ensuring consistent comfort year-round. - • **Spacious Comfort Zone:** Extra-large 17.7x16.1 inch cushion molds perfectly to your body for all-day support. - • **Breathable & Practical:** Removable mesh cover promotes airflow, preventing sweat and discomfort during extended use. - • **Pain-Relief Powerhouse:** Designed to alleviate sciatica, tailbone, hip, and leg discomfort for those long sitting sessions. ## Overview This large, OEKO-TEX STANDARD 100 certified seat cushion features premium soft foam that remains pliable year-round, a spacious ergonomic design (17.7x16.1x3 inches), and a non-slip curved base to provide superior support and pain relief for back, sciatica, hip, and coccyx discomfort during long sitting hours at the office, home, or on the go. ## Description Full description not available ## Features - [Soft Foam ] Our seat cushion is crafted with premium soft foam to ensure optimal comfort and support. It is perfect for office chair, home seat, car seat, airplane seat. When you take a long journey, you can take it with you.Unlike other seat cushions, it remains pliable even in the winter months to make it the perfect chair pad for year-round use - [Large Size Cushion] TranquilRelax seat cushion measures 17.71x16.14 x3 inches. The extra spacious design enhances your comfort and conforms to your body. The pad has a removable and breathable mesh cover to ensure optimal air flow and to prevent discomfort caused by sweat during prolonged sitting - [Non-slip Bottom]The non-slip bottom ensures that it will securely stay it in place.This seat cushion has a curve edge, which is more ergonomic and fits your body - [Multiple Uses] Our chair pad fits all types of chairs or seats. The large size office seat cushion provides greater comfort and support for legs and hips, to alleviate sciatica, tailbone pain, leg numbness, and hip discomfort.It provides enough support for sedentary people - [Practical Product] The seat cushion is both soft and supportive, which will not deform. It is ideal for individuals with a sedentary lifestyle. It serves as an excellent practical option for your families, friends, superiors, clients, teachers and colleagues ## Product Details - **Brand:** TranquilRelax - **Special Feature:** Anti-Slip, ‎Breathable - **Color:** Grey - **Size:** Large - **Fill Material:** Memory Foam ## Images ![Memory Foam Seat Cushion for Office Chair, 3-Inch, Gray - Image 1](https://m.media-amazon.com/images/I/81Ysjo-myOL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Comfortable, cool, thickness and worth every dollar! *by B***E on June 29, 2025* The media could not be loaded. Absolutely worth every dollar”. No paid review, no strings attached. Keep it clean and you are good to go. Fits well oversized, cool and gel-springs right back up after seating long hours. My budget was simple did not want to invest on expensive ergonomic bulky chairs, taking up space in my bedroom with a small computer set up. This two sets of gel cushions keep my back nice and straight and comfortable. The bottom chair gel-cushion has been excellent at keeping its shape and does provide excellent cushioning when sitting anywhere from 6-8 hours. The top back gel cushion-also got from Amazon and it’s absolutely a must! Chair cushion cover Easily washable, but cleans off w a chub too. If you’re looking to create a “small desk station with a nice chair” and provide yourself with comfort if have a limited budget, this is absolutely an ideal set up. Have a nice set up does not require immense expense, just the right necessities! Good support, firmness just right, well designed. The quality is very good for the price. I recently started working from home, remote more and did not want to spend an immense amount of money on chairs and set ups that would take up space in my bedroom, etc., this was just an ideal set up for my laptop and my screen. Bought the desk Amazon too easy set up. ### ⭐⭐⭐⭐⭐ This cushion is 100% worth it *by K***R on July 4, 2025* This cushion made a huge difference from the very first day. It’s firm but supportive, with just enough give to make sitting for hours much more bearable. I noticed I'm not slouching as much, and my lower back pain feels less tense by the end of the day. It fits perfectly on my office chair and doesn't slide around, even when I shift positions. I’ve been using it for a while now and it still holds its shape really well — no sagging or flattening. One thing I’ll say: if you’re looking for a super soft, plush feel, this might not be it. It’s more of a supportive comfort, which is exactly what I needed.Bottom line: if you sit for long hours and your chair just isn’t cutting it, this cushion is 100% worth it. My only regret is not buying it sooner! ### ⭐⭐⭐⭐ Does the job *by R***A on September 14, 2024* The cushion on my chair was worn enough to be completely flat. It hurt to sit on it for extended periods. The chair is still in good condition.This cushion is more comfortable. It fits well and does not slip.I am happy with my purchase and only gave it four stars as it was more expensive than I had hoped. It is worth the money and I recommend it to anyone who needs a little more cushion on their chair. --- ## 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.jp/products/647014768-memory-foam-seat-cushion-for-office-chair-3-inch-gray](https://www.desertcart.jp/products/647014768-memory-foam-seat-cushion-for-office-chair-3-inch-gray) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-15*