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Ergonomic Memory Foam Seat Cushion with Lumbar & Back Support, Relieves Back Pain, Reduces Pressure

$39.99
$77.00
-48%
Color:  Gray
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🎉High Quality 🎉
🔥Global Hot Sale🔥
⚡Sustainably Made⚡
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Description

Ergonomic Memory Foam Seat Cushion

Comfort That Supports Your Back All Day

Sitting for long hours shouldn’t mean living with back pain, hip pressure, or poor posture. Our ergonomic memory foam seat cushion is designed to provide targeted support for your lower back, hips, and spine—helping you sit more comfortably at work, at home, or on the go.

Sit Better. Feel Better.

Made with high-density memory foam, this cushion gently contours to your body while maintaining firm support. The ergonomic shape helps promote healthy posture, reduce pressure on the tailbone, and relieve discomfort from prolonged sitting.

Why You’ll Love It

✅Ergonomic Back & Lumbar Support
Designed to support your lower back and encourage better sitting posture.

✅Pressure Relief Comfort
Helps reduce pressure on the hips, tailbone, and spine during long sitting sessions.

✅Premium Memory Foam
Soft enough for comfort, firm enough for lasting support.

✅Perfect for Any Chair
Great for office chairs, car seats, wheelchairs, dining chairs, gaming chairs, and home seating.

✅Ideal for Daily Use
Perfect for office workers, drivers, students, seniors, and anyone who sits for extended periods.


Designed for Everyday Comfort

Whether you’re working at your desk, driving long distances, gaming, studying, or relaxing at home, this cushion helps make every seat more supportive and comfortable.

Helps With

✅Back discomfort
✅Lower back pressure
✅Tailbone pain
✅Hip pressure
✅Poor posture
✅Long sitting fatigue

Upgrade Any Seat Instantly

No need to replace your chair. Simply place the cushion on your seat and enjoy improved comfort and support wherever you sit.

How a Weird L-Shaped Memory Foam Cushion Is Ending Chronic Back Pain for 50,000+ Americans

The Shaped Cushion solves the hidden cause of sitting pain by locking your spine into its natural S-curve, providing relief for office workers, drivers, and expectant mothers alike.

Limited-Time Offer

Give your back the comfort it deserves today.
Order now and enjoy a more supportive sitting experience every day.

Ergonomic Support Starts Here

Get Yours Today and Sit Comfortably Anywhere.
const TAG = "spz-custom-product-automatic"; class SpzCustomProductAutomatic extends SPZ.BaseElement { constructor(element) { super(element); this.variant_id = '088aad4f-f254-4f00-950b-3289cfe10ee9'; this.isRTL = SPZ.win.document.dir === 'rtl'; this.isAddingToCart_ = false; // 加购中状态 } static deferredMount() { return false; } buildCallback() { this.action_ = SPZServices.actionServiceForDoc(this.element); this.templates_ = SPZServices.templatesForDoc(this.element); this.xhr_ = SPZServices.xhrFor(this.win); this.setupAction_(); this.viewport_ = this.getViewport(); } mountCallback() { this.init(); // 监听事件 this.bindEvent_(); } async init() { this.handleFitTheme(); const data = await this.getDiscountList(); this.renderApiData_(data); } async getDiscountList() { const productId = '77983f50-9fe1-4b3e-8c85-73880bd74a32'; const variantId = this.variant_id; const productType = 'default'; const reqBody = { product_id: productId, variant_id: variantId, discount_method: "DM_AUTOMATIC", customer: { customer_id: window.C_SETTINGS.customer.customer_id, email: window.C_SETTINGS.customer.customer_email }, product_type: productType } const url = `/api/storefront/promotion/display_setting/text/list`; const data = await this.xhr_.fetchJson(url, { method: "post", body: reqBody }).then(res => { return res; }).catch(err => { this.setContainerDisabled(false); }) return data; } async renderDiscountList() { this.setContainerDisabled(true); const data = await this.getDiscountList(); this.setContainerDisabled(false); // 重新渲染 抖动问题处理 this.renderApiData_(data); } clearDom() { const children = this.element.querySelector('*:not(template)'); children && SPZCore.Dom.removeElement(children); } async renderApiData_(data) { const parentDiv = document.querySelector('.automatic_discount_container'); const newTplDom = await this.getRenderTemplate(data); if (parentDiv) { parentDiv.innerHTML = ''; parentDiv.appendChild(newTplDom); } else { console.log('automatic_discount_container is null'); } } doRender_(data) { const renderData = data || {}; return this.templates_ .findAndRenderTemplate(this.element, renderData) .then((el) => { this.clearDom(); this.element.appendChild(el); }); } async getRenderTemplate(data) { const renderData = data || {}; return this.templates_ .findAndRenderTemplate(this.element, { ...renderData, isRTL: this.isRTL }) .then((el) => { this.clearDom(); return el; }); } setContainerDisabled(isDisable) { const automaticDiscountEl = document.querySelector('.automatic_discount_container_outer'); if(isDisable) { automaticDiscountEl.setAttribute('disabled', ''); } else { automaticDiscountEl.removeAttribute('disabled'); } } // 绑定事件 bindEvent_() { window.addEventListener('click', (e) => { let containerNodes = document.querySelectorAll(".automatic-container .panel"); let bool; Array.from(containerNodes).forEach((node) => { if(node.contains(e.target)){ bool = true; } }) // 是否popover面板点击范围 if (bool) { return; } if(e.target.classList.contains('drowdown-icon') || e.target.parentNode.classList.contains('drowdown-icon')){ return; } const nodes = document.querySelectorAll('.automatic-container'); Array.from(nodes).forEach((node) => { node.classList.remove('open-dropdown'); }) // 兼容主题 this.toggleProductSticky(true); }) // 监听变体变化 document.addEventListener('dj.variantChange', async(event) => { // 重新渲染 const variant = event.detail.selected; if (variant.product_id == '77983f50-9fe1-4b3e-8c85-73880bd74a32' && variant.id != this.variant_id) { this.variant_id = variant.id; this.renderDiscountList(); } }); } // 兼容主题 handleFitTheme() { // top 属性影响抖动 let productInfoEl = null; if (window.SHOPLAZZA.theme.merchant_theme_name === 'Wind' || window.SHOPLAZZA.theme.merchant_theme_name === 'Flash') { productInfoEl = document.querySelector('.product-info-body .product-sticky-container'); } else if (window.SHOPLAZZA.theme.merchant_theme_name === 'Hero') { productInfoEl = document.querySelector('.product__info-wrapper .properties-content'); } if(productInfoEl){ productInfoEl.classList.add('force-top-auto'); } } // 兼容 wind/flash /hero 主题 (sticky属性影响 popover 层级展示, 会被其他元素覆盖) toggleProductSticky(isSticky) { let productInfoEl = null; if (window.SHOPLAZZA.theme.merchant_theme_name === 'Wind' || window.SHOPLAZZA.theme.merchant_theme_name === 'Flash') { productInfoEl = document.querySelector('.product-info-body .product-sticky-container'); } else if (window.SHOPLAZZA.theme.merchant_theme_name === 'Hero') { productInfoEl = document.querySelector('.product__info-wrapper .properties-content'); } if(productInfoEl){ if(isSticky) { // 还原该主题原有的sticky属性值 productInfoEl.classList.remove('force-position-static'); return; } productInfoEl.classList.toggle('force-position-static'); } } setupAction_() { this.registerAction('handleDropdown', (invocation) => { const discount_id = invocation.args.discount_id; const nodes = document.querySelectorAll('.automatic-container'); Array.from(nodes).forEach((node) => { if(node.getAttribute('id') != `automatic-${discount_id}`) { node.classList.remove('open-dropdown'); } }) const $discount_item = document.querySelector(`#automatic-${discount_id}`); $discount_item && $discount_item.classList.toggle('open-dropdown'); // 兼容主题 this.toggleProductSticky(); }); // 加购事件 this.registerAction('handleAddToCart', (invocation) => { // 阻止事件冒泡 const event = invocation.event; if (event) { event.stopPropagation(); event.preventDefault(); } // 如果正在加购中，直接返回 if (this.isAddingToCart_) { return; } const quantity = invocation.args.quantity || 1; this.addToCart(quantity); }); } // 加购方法 async addToCart(quantity) { // 设置加购中状态 this.isAddingToCart_ = true; const productId = '77983f50-9fe1-4b3e-8c85-73880bd74a32'; const variantId = this.variant_id; const url = '/api/cart'; const reqBody = { product_id: productId, variant_id: variantId, quantity: quantity }; try { const data = await this.xhr_.fetchJson(url, { method: 'POST', body: reqBody }); // 触发加购成功提示 this.triggerAddToCartToast_(); return data; } catch (error) { error.then(err=>{ this.showToast_(err?.message || err?.errors?.[0] || 'Unknown error'); }) } finally { // 无论成功失败，都重置加购状态 this.isAddingToCart_ = false; } } showToast_(message) { const toastEl = document.querySelector("#apps-match-drawer-add_to_cart_toast"); if (toastEl) { SPZ.whenApiDefined(toastEl).then((apis) => { apis.showToast(message); }); } } // 触发加购成功提示 triggerAddToCartToast_() { // 如果主题有自己的加购提示，则不显示 const themeAddToCartToastEl = document.querySelector('#add-cart-event-proxy'); if (themeAddToCartToastEl) return; // 显示应用的加购成功提示 this.showToast_("Added successfully"); } triggerEvent_(name, data) { const event = SPZUtils.Event.create(this.win, `${ TAG }.${ name }`, data || {}); this.action_.trigger(this.element, name, event); } isLayoutSupported(layout) { return layout == SPZCore.Layout.CONTAINER; } } SPZ.defineElement(TAG, SpzCustomProductAutomatic);
class SpzCustomDiscountBundle extends SPZ.BaseElement { constructor(element) { super(element); } isLayoutSupported(layout) { return layout == SPZCore.Layout.LOGIC; } mountCallback() { // 同一页可能有多个 block 各自渲染本 snippet，导致逻辑元素 spz-custom-discount-toast(#appsAddCartToastFunc) 重复。 // 仅保留 DOM 中第一个实例，其余重复实例移除自身，保证逻辑元素及其 action 引用(appsAddCartToastFunc)唯一。 const funcs = document.querySelectorAll('#appsAddCartToastFunc'); if (funcs.length > 1 && this.element !== funcs[0]) { this.element.remove(); return; } // 全局折扣 toast 的弹出点分散在多个模板/组件里（含声明式 @atcError），无法逐一在弹出前前置， // 故挂载时幂等地去重并挂到 body；加购 toast 改为弹出前按需去重（见 showAddToCartToast） this.ensureSingleToastInBody_('cart_match_discount_toast_wrap'); } unmountCallback() {} // 同一页面可能有多个 block 各自渲染本 toast snippet（如商详的 discount_automatic + 购物车抽屉里的折扣横幅）， // 导致 toast 外层出现重复 id。重复 id 下 getElementById/querySelector 及 SPZ 动作引用都只命中第一个， // 且被关进抽屉的那份会被抽屉的 transform/overflow 裁剪/错位。这里在挂载时幂等去重： // 只保留一份、移除多余的，并把保留的挂到 body（body 是 position:fixed 最安全的落点，避免被任何祖先裁剪）。可反复调用。 ensureSingleToastInBody_(id) { const els = Array.from(document.querySelectorAll('#' + id)); if (!els.length) return; els.slice(1).forEach((el) => el.remove()); const keep = els[0]; if (keep.parentNode !== document.body) { document.body.appendChild(keep); } } // 主题购物车抽屉是否打开 isInCartDrawer_() { return !!document.querySelector('[data-section-type="cart_drawer"] spz-sidebar[open]'); } setupAction_() { this.registerAction('showAddToCartToast', () => { // 抽屉内加购：主题本就不会有加购效果，统一弹插件自己的 toast // 非抽屉：主题有加购代理则沿用主题加购效果，否则插件兜底 const proxyEl = document.getElementById('add-cart-event-proxy'); const inDrawer = this.isInCartDrawer_(); if (!inDrawer && proxyEl) { return; } // 弹出前按需去重并挂到 body（幂等），避免重复 id 命中错对象或被抽屉裁剪/错位 this.ensureSingleToastInBody_('apps_add_cart_toast_wrap'); const toastEl = document.querySelector('#apps-match-drawer-add_to_cart_toast') SPZ.whenApiDefined(toastEl).then((apis) => { apis.showToast("Added successfully"); }); }); } buildCallback() { this.setupAction_(); }; } SPZ.defineElement('spz-custom-discount-toast', SpzCustomDiscountBundle);

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