--- product_id: 443433110 title: "KASTWAVE Gel Seat Cushion Double Thick Egg Seat Cushion with Non slip Cover - Coccyx Cushion for Back & Sciatica Pain Office chair Car Seat Cushion Honeycomb Breathable Design, Durable, Portable" brand: "kastwave" price: "¥5927" currency: JPY in_stock: false reviews_count: 2 url: https://www.desertcart.jp/products/443433110-kastwave-gel-seat-cushion-double-thick-egg-seat-cushion-non store_origin: JP region: Japan --- # Double-thick gel layer for pressure relief 500+ honeycomb cells for superior cooling Lightweight & foldable for ultimate portability KASTWAVE Gel Seat Cushion Double Thick Egg Seat Cushion with Non slip Cover - Coccyx Cushion for Back & Sciatica Pain Office chair Car Seat Cushion Honeycomb Breathable Design, Durable, Portable **Brand:** kastwave **Price:** ¥5927 **Availability:** ❌ Out of Stock ## Summary > 💼 Elevate your sit game—comfort that works as hard as you do! ## Quick Answers - **What is this?** KASTWAVE Gel Seat Cushion Double Thick Egg Seat Cushion with Non slip Cover - Coccyx Cushion for Back & Sciatica Pain Office chair Car Seat Cushion Honeycomb Breathable Design, Durable, Portable by kastwave - **How much does it cost?** ¥5927 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/443433110-kastwave-gel-seat-cushion-double-thick-egg-seat-cushion-non) ## Best For - kastwave enthusiasts ## Why This Product - Trusted kastwave brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Clean & Fresh Always:** Removable, machine-washable non-slip cover keeps your cushion pristine. - • **Stay Cool, Sit Smart:** Innovative honeycomb gel design reduces heat buildup for all-day comfort. - • **Take Comfort Anywhere:** Ultra-portable and foldable—perfect for office, car, or travel use. - • **Versatile Seating Upgrade:** Ideal for office chairs, cars, couches, and even airplanes—comfort that travels with you. - • **Pressure-Free Productivity:** Ergonomically contours to your body, easing lower back, hip, and thigh strain. ## Overview The KASTWAVE Gel Seat Cushion features a double-thick, breathable honeycomb gel design with over 500 flexible cells to keep you cool and comfortable. Lightweight and foldable, it’s perfect for office, travel, or home use. Its ergonomic shape reduces pressure on the coccyx and lower back, promoting healthy posture. The non-slip, machine-washable cover ensures durability and easy maintenance, making it a versatile solution for anyone seeking relief from back and sciatica pain. ## Description MODIFIED CUSHION COVER - Newly designed cushion-cover has added a non-slip feature. The cover is also removable and washable. SIT WITH GREAT COMFORT - The design of our seat and lower back cushion will provide pressure relief on your tailbone and lower back area.The back support will make anything you sit on feel more comfortable. NO HOT SEAT ANYMORE - This ventilated gel cushion has been designed to maintain proper temperature. With an air mesh cover that is breathable and washable it allows a maximum amount of air flow through the cushion. Forget about the heat and the irritation from previous experience. This cushion certainly will make a difference. RELIEF PAIN - It is difficult for people with back pain to sit with comfort. This cushion is designed to relieve the pain from lumbar, hip, tailbone and coccyx. The high quality gel hugs tailbone and maintains its shape and contour without compromising the comfort. Study shows people with back pain are able to sit longer period of time with this cushion than any other leading brand on the market today. This gel padding compresses and cushions just enough to provide you with great comfort yet keeps its shape to support your tailbone,lower back,spine and hips from those severe pressure points. This gel seat cushion is an exceptional multipurpose product.The ergonomically honeycomb design of this gel support chair cushion helps with pregnancy back pain,hemorrhoids,herniated discs and other spinal issues. ## Features - 【COMFORT COOLING】This gel seat cushion made of premium gel material. It adopts more than 500 flexible honeycomb grid design, this unique honeycomb cooling structure greatly reduces heat transfer between the buttocks and the seat, keep cool at the bottom for sedentary. - 【REDUCE PRESSURE & KEEP COMFORT】This gel chair cushion will perfectly fits your buttocks curve, soft and without losing support force, provide comfort by reducing pressure on the lower back, waist, hips, and thighs, keeps healthy posture. - 【LIGHTWEIGHT & PORTABLE CHAIR PILLOW】This gel butt cushion makes an excellent travel companion, even for simple trips home or to the office. Its lightweght & foldable means you can take the sitting pillow anywhere you go. - 【REMOVABLE & WASHABLE COVER】Chair cushion for desk chair, will keep the cushion in right place on any type of surface. It is also zipper design, the machine washable cover can be removed quickly and easily. - 【WIDELY APPLICATION】This multifunction desk seat cushion suitable for various use scenarios: Office Chair, Computer Desk, Kitchen, Dining Room, Living Room, Patio, Couch, Recliner, Car, Truck, Train & Airplane Travel, Classrooms. ## Technical Specifications | Specification | Value | |---------------|-------| | Age Range Description | Adult | | Asin | B09TVWK5D6 | | Best Sellers Rank | #162,211 in Home (See Top 100 in Home) #740 in Home Office Back Cushions & Seat Cushions | | Brand Name | KASTWAVE | | Color | Blue | | Customer Reviews | 3.2 3.2 out of 5 stars (8) 3.2 out of 5 stars | | Item Dimensions L X W | 46L x 36W centimeters | | Item Weight | 0.94 Kilograms | | Manufacturer | KASTWAVE | | Material Features | Breathable | | Material Type | Memory Foam | | Material Type Free | en_AE | | Number Of Pieces | 1 | | Product Care Instructions | Machine Wash | | Recommended Uses For Product | Sitting, Traveling | | Shape | Rectangular | | Special Features | Cooling, Foldable, Washable | | Target Use Body Part | Back, Head, Neck | | Unit Count | 1.0 Count | ## Product Details - **Age range (description):** Adult - **Brand:** KASTWAVE - **Colour:** Blue - **Shape:** Rectangular - **Special features:** Cooling, Foldable, Washable ## Images ![KASTWAVE Gel Seat Cushion Double Thick Egg Seat Cushion with Non slip Cover - Coccyx Cushion for Back & Sciatica Pain Office chair Car Seat Cushion Honeycomb Breathable Design, Durable, Portable - Image 1](https://m.media-amazon.com/images/I/61oUC1-O9ZL.jpg) ![KASTWAVE Gel Seat Cushion Double Thick Egg Seat Cushion with Non slip Cover - Coccyx Cushion for Back & Sciatica Pain Office chair Car Seat Cushion Honeycomb Breathable Design, Durable, Portable - Image 2](https://m.media-amazon.com/images/I/61sPmMs29jL.jpg) ![KASTWAVE Gel Seat Cushion Double Thick Egg Seat Cushion with Non slip Cover - Coccyx Cushion for Back & Sciatica Pain Office chair Car Seat Cushion Honeycomb Breathable Design, Durable, Portable - Image 3](https://m.media-amazon.com/images/I/71YZJ2YRrJL.jpg) ![KASTWAVE Gel Seat Cushion Double Thick Egg Seat Cushion with Non slip Cover - Coccyx Cushion for Back & Sciatica Pain Office chair Car Seat Cushion Honeycomb Breathable Design, Durable, Portable - Image 4](https://m.media-amazon.com/images/I/71oQce+sJHL.jpg) ![KASTWAVE Gel Seat Cushion Double Thick Egg Seat Cushion with Non slip Cover - Coccyx Cushion for Back & Sciatica Pain Office chair Car Seat Cushion Honeycomb Breathable Design, Durable, Portable - Image 5](https://m.media-amazon.com/images/I/71zn5zOFAbL.jpg) ## Customer Reviews ### ⭐⭐ Very thin *by on Reviewed in the United Arab Emirates 6 March 2024* Very thin, would not recommend ### ⭐⭐⭐ Comfortable Sleep *by on Reviewed in the United Arab Emirates 23 September 2023* My brother used it to sleep on and he said it was comfortable ## Frequently Bought Together - KASTWAVE Gel Seat Cushion Double Thick Egg Seat Cushion with Non slip Cover - Coccyx Cushion for Back & Sciatica Pain Office chair Car Seat Cushion Honeycomb Breathable Design, Durable, Portable - Sotor Pillow, Memory Foam Back Support Cushion Lumbar Support for Office Chair, Car Seat, Recliner, with Extension Strap and Carry Bag Black - QUTOOL Lumbar Support Pillow for Office Chair Car Memory Foam Back Cushion for Back Large Back Pillow for Computer, Gaming Chair, Recliner Double Adjustable Straps --- ## 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/443433110-kastwave-gel-seat-cushion-double-thick-egg-seat-cushion-non](https://www.desertcart.jp/products/443433110-kastwave-gel-seat-cushion-double-thick-egg-seat-cushion-non) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-17*