Revenue is disaggregated by product category below. Net sales and percentage of net sales for the fiscal years 2019, 2018 and 2017 are as follows:

(In thousands)	February 1, 2020				February 2, 2019				February 3, 2018
Non-Athletics:
Women's	$	255,773	25	%	$	250,320	24	%	$	244,945	24	%
Men's		149,075	14			144,628	14			141,295	14
Children's		54,707	5			51,963	5			50,255	5
Total		459,555	44			446,911	43			436,495	43
Athletics:
Women's		175,298	17			179,411	18			177,627	17
Men's		210,157	20			215,796	21			219,224	22
Children's		139,625	14			138,686	14			138,074	14
Total		525,080	51			533,893	53			534,925	53
Accessories		48,402	5			45,100	4			43,606	4
Other		3,514	0			3,746	0			4,128	0
Total	$	1,036,551	100	%	$	1,029,650	100	%	$	1,019,154	100	%

We operate as a multi-channel, family footwear retailer and provide the convenience of shopping at our brick-and-mortar stores or shopping online through our e-commerce and mobile platforms. As part of our multi-channel strategy, we offer Shoes 2U, a program that enables us to ship product to a customer’s home or selected store if the product is not in stock. We also offer “buy online, pick up in store” services for our customers. “Buy online, pick up in store” provides the convenience of local pickup for our customers.

For our brick-and-mortar stores, we satisfy our performance obligation and control is transferred at the point of sale when the customer takes possession of the products. This also includes the “buy online, pick up in store” scenario described above and includes Shoes 2U when customers choose to pick up their goods in-store. For sales made through our e-commerce site or mobile app in which the customer chooses home delivery, we transfer control and recognize revenue when the product is shipped from our stores or distribution center. This also includes Shoes 2U when the customer chooses home delivery.

We offer our customers sales incentives including coupons, discounts, and free merchandise. Sales are recorded net of such incentives and returns and allowances. If an incentive involves free merchandise, that merchandise is recorded as a zero sale and the cost is included in cost of sales. Gift card revenue is recognized at the time of redemption. When a customer makes a purchase as part of our rewards program, we allocate the transaction price between the goods purchased and the loyalty reward points and recognize the loyalty revenue based on estimated customer redemptions.

The transaction price is the amount of consideration we expect to receive from our customers and is reduced by any stated promotional discounts at the time of purchase. The transaction price may be variable due to terms that permit customers to exchange or return products for a refund within a limited period of time. The implicit contract with the customer reflected in the transaction receipt states the final terms of the sale, including the description, quantity, and price of each product purchased. The customer agrees to a stated price in the contract that does not vary over the term of the contract and may include revenue to offset shipping costs. Taxes imposed by governmental authorities such as sales taxes are excluded from net sales.

Our brick-and-mortar stores accept various forms of payment from customers at the point of sale. These include cash, checks, credit/debit cards and gift cards. Our e-commerce and mobile platforms accept credit/debit cards, PayPal, Apple Pay and gift cards as forms of payment. Payments made for products are generally collected when control passes to the customer, either at the point of sale or at the time the customer order is shipped. For Shoes 2U transactions, customers may order the product at the point of sale. For these transactions, customers pay in advance and unearned revenue is recorded as a contract liability. We recognize the related revenue when control has been transferred to the customer (i.e., when the product is picked up by the customer or shipped to the customer). Unearned revenue related to Shoes 2U was not material to our consolidated financial statements at February 1, 2020 and February 2, 2019.

Brick-and-mortar and online customers can exchange or return products for a refund within a limited period of time. We have established a returns allowance based upon historical experience in order to estimate these transactions. This allowance is recorded as a reduction in sales with a corresponding refund liability recorded in accrued and other liabilities. The estimated cost of merchandise inventory is recorded as a reduction to cost of sales and an increase in merchandise inventories. At February 1, 2020, approximately $718,000 of refund liabilities and $500,000 of right of return assets associated with estimated product returns were recorded in our consolidated balance sheet. At February 2, 2019, approximately $600,000 of refund liabilities and $410,000 of right of return assets associated with estimated product returns were recorded in our consolidated balance sheet.

We sell gift cards in our brick-and-mortar stores and through our e-commerce and mobile platforms. Gift card purchases are recorded as an increase to contract liabilities at the time of purchase and a decrease to contract liabilities when a customer redeems a gift card. Estimated breakage is determined based on historical breakage percentages and recognized as revenue based on expected gift card usage. We do not record breakage revenue when escheat liability to relevant jurisdictions exists. At February 1, 2020 and February 2, 2019, approximately $1.5 million and $1.6 million of contract liabilities associated with unredeemed gift cards were recorded in our consolidated balance sheets, respectively. We expect the revenue associated with these liabilities to be recognized in proportion to the pattern of customer redemptions within two years. Breakage revenue associated with our gift cards of $143,000 and $179,000 was recognized in net sales during fiscal 2019 and fiscal 2018, respectively.

Our Shoe Perks rewards program allows customers to accrue points and provides customers with the opportunity to earn rewards. Points under Shoe Perks are earned primarily by making purchases either in-store or through our online platform. Once a certain threshold of accumulated points is reached, the customer earns a reward certificate, which is redeemable at any of our stores or online.

When a Shoe Perks customer makes a purchase, we allocate the transaction price between the goods purchased and the loyalty reward points earned based on the relative standalone selling price. The portion allocated to the points program is recorded as a contract liability for rewards that are expected to be redeemed. We then recognize revenue based on an estimate of when customers redeem rewards, which incorporates an estimate of points expected to expire using historical rates. During fiscal 2019 and 2018, approximately $2.4 million and $1.5 million, respectively, of loyalty rewards were recognized in net sales. At February 1, 2020 and February 2, 2019, approximately $679,000 and $245,000 of contract liabilities associated with loyalty rewards were recorded in our consolidated balance sheets, respectively. We expect the revenue associated with these liabilities to be recognized in proportion to the pattern of customer redemptions in less than one year.